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Urine Crystals: Types, Causes, and More

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Here are the different types and how they’re treated."/><meta name="keywords" content="urine crystals"/><meta name="k1" content="urinaryhealth"/><meta name="k2" content="urinarytract"/><meta name="ROBOTS" content="NOODP"/><meta name="sailthru.image.thumb" content="https://media.post.rvohealth.io/wp-content/uploads/2020/08/3131-Man_and_woman_standing-732x549-thumbnail-1-732x549.jpg"/><meta name="sailthru.tags" content="urinaryhealth,urinarytract"/><meta name="article:published_time" content="2018-01-18T08:00:00.000Z"/><meta name="article:author" content="Ana Gotter"/><meta property="og:title" content="What You Need to Know About Crystals in the Urine"/><meta property="og:description" content="Urine crystals can occur for a variety of reasons, many harmless. 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Connect with us for all things health.</p><div role="menu" class="css-1bdb0zy"><a class="icon-hl-facebook css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|Facebook channel icon clicked" href="http://www.facebook.com/pages/Healthline/173263326992" aria-label="Visit our Facebook page"></a><a class="icon-hl-twitter css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|Twitter channel icon clicked" href="https://twitter.com/healthline" aria-label="Visit our Twitter page"></a><a class="icon-hl-instagram css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|Instagram channel icon clicked" href="http://www.instagram.com/healthline" aria-label="Visit our Instagram page"></a><a class="icon-hl-linkedin css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|LinkedIn channel icon clicked" href="https://www.linkedin.com/company/healthline-media/" aria-label="Visit our LinkedIn page"></a><a class="icon-hl-youtube-new css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|YoutTube channel icon clicked" href="https://www.youtube.com/channel/UC7snF15Idi7px6XujWe_h9A" aria-label="Visit our YouTube page"></a><a class="icon-hl-flipboard css-lembgb" target="_blank" rel="noopener noreferrer" data-event="|social channel footer click|Flipboard channel icon clicked" href="https://flipboard.com/@healthline" aria-label="Visit our Flipboard page"></a></div></div></div></li></ul></div><div class="css-12qvns3"><div class="css-1a25cod"></div><button aria-label="Click to Subscribe to our Newsletter" id="newsletter-subscription-button" data-test-id="newsletter-subscribe-button" aria-haspopup="dialog" class="css-v5umvf"><span class="css-19k7c2f">Subscribe</span></button><div class="css-1ur4f3m"></div></div><div class="css-2dofw9"></div></div></div></div><div class="css-ifmqwy"></div></div><div class="css-16wahxh"><aside class="css-1wm8u43" data-testid="header-leaderboard" data-sticky="true"><div data-empty="true" class="css-1j2d96m"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="dlb1__slot" data-adbridg-ad-class="dlb1" data-ad="true" class="css-1jpwf16"></div></div></aside></div><aside data-testid="mobile-leaderboard" class="css-pdceuf"><div class="css-11egx89"><button class="icon-hl-close-thick css-16m9poz"></button><div data-empty="true" class="css-1fteite"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="mlb1__slot" data-adbridg-ad-class="mlb1" data-ad="true" class="css-bcus5s"></div></div></div></aside><div data-placement="subheader"></div><div><div class="css-m260rd"><div data-article-body="0" class="css-blwnmv"><div class="css-z468a2"><h1>Crystals in the Urine: What You Need to Know</h1><div data-preamp="social-proof-lessons"></div><div data-testid="byline"><section data-testid="byline" class="css-jy1umg"><div class="css-1q67gt9"><div class="css-quwpxp"><img src="//i0.wp.com/post.healthline.com/wp-content/uploads/2022/01/Alana-Biggers-500x500-Bio.png?w=105&amp;h=105" alt=""/></div></div><div><span><span><a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Medically reviewed</a> by <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Alana Biggers, M.D., MPH</a></span></span> — <span><span><span><span>Written by <span>Ana Gotter</span></span></span></span></span> — <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer"><span> Updated on June 9, 2020</span></a></div></section></div><div><nav id="tab-bar-0" data-testid="tab-bar" class="css-7u7i0a"><ul class="css-17ztj4b"><li class="css-t753mo"><a href="#types" class="css-1r1p1p8">Types</a></li><li class="css-t753mo"><a href="#diagnosis" class="css-1r1p1p8">Diagnosis</a></li><li class="css-t753mo"><a href="#prevention" class="css-1r1p1p8">Prevention</a></li><li class="css-t753mo"><a href="#outlook" class="css-1r1p1p8">Outlook</a></li></ul></nav><article class="article-body css-d2znx6 undefined"><div class="css-12va8w7"><span style="font-size:0;line-height:0"></span><span style="font-size:0;line-height:0"></span><div><div><p class="css-w2pt6r">Urine contains a large number of different chemicals. Under some circumstances, these chemicals may solidify into salt crystals. This is called crystalluria.</p></div></div><div><p>Crystals can be found in the urine of healthy individuals. They may be caused by minor issues like a slight excess of protein or vitamin C. Many types of urine crystals are relatively harmless.</p></div><div><div data-preamp="serena-chatbot"></div></div><div><p>In some cases, however, urine crystals can be indicators of a more serious underlying condition. Symptoms that would indicate a more serious condition could include:</p></div><div><ul><li>fever</li><li>severe abdominal pain</li><li>blood in the urine</li><li>jaundice</li><li>fatigue</li></ul></div><div><p>Read on to learn more about the different types of crystals and how they’re treated.</p></div><div class="css-20w1gi"><aside class="css-0 css-0" data-testid="sticky-inline-ad" data-sticky="false"><div><div data-empty="true" class="css-1sq15os"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="inline2__slot" data-adbridg-ad-class="inline2__slot" data-ad="true" class="css-1t05dkn"></div></div></div></aside></div></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="types"> Types of urine crystals</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>There are a number of different types of urine crystals.</p></div><div><h3>Uric acid</h3></div><div><p>Uric acid crystals can be different types of shapes: barrel, plate-like, or diamond. They’re typically orange-brown or yellow in color.</p></div><div><p>They can be found in normal urine when caused by a protein-rich diet, which increases <a href="https://www.healthline.com/health/uric-acid-urine" class="content-link css-1c2ok3c">uric acid in the urine</a>.</p></div><div><p>They can also be caused by <a href="https://www.healthline.com/health/kidney-stones" class="content-link css-1c2ok3c">kidney stones</a>, <a href="https://www.healthline.com/health/gout-causes" class="content-link css-1c2ok3c">gout</a>, <a href="https://www.healthline.com/health/chemotherapy" class="content-link css-1c2ok3c">chemotherapy</a>, or <a href="https://www.healthline.com/health/tumor-lysis-syndrome" class="content-link css-1c2ok3c">tumor lysis syndrome</a>.</p></div><div><p>Symptoms of kidney stones include severe abdominal, flank, or groin pain; nausea; and blood in the urine. <a href="https://www.healthline.com/health/gout-symptoms" class="content-link css-1c2ok3c">Symptoms of gout</a> can include burning pain, stiffness, and swelling in a joint.</p></div><div><p>Treatment depends on the underlying condition, but staying hydrated is one of the best ways to treat the crystals themselves. <a href="https://www.healthline.com/nutrition/19-hydrating-foods" class="content-link css-1c2ok3c">Check out these water-rich foods that can help you stay hydrated.</a></p></div><div><h3>Calcium oxalate</h3></div><div><p>Calcium oxalate crystals are shaped like dumbbells or envelopes. They’re colorless and can be found in healthy urine.</p></div><div><p>Calcium oxalate crystals are heavily associated with kidney stones, which can form when too much oxalate (found in such foods as spinach) is in the system. Kidney stone symptoms include severe groin or abdominal pain, nausea, fever, and difficulty passing urine. <a href="https://www.healthline.com/nutrition/kidney-stone-remedies" class="content-link css-1c2ok3c">These natural remedies can help you fight kidney stones at home.</a></p></div><div><p>In some cases, calcium oxalate crystals can be caused by the ingestion of ethylene glycol, which is toxic and is an essential ingredient in antifreeze formulations. Exposure to this compound can cause symptoms such as:</p></div><div><ul><li>throat and lung irritation</li><li>central nervous system problems</li><li>renal failure</li></ul></div><div><p>Your doctor may recommend <a href="https://www.healthline.com/health-slideshow/what-is-a-low-oxalate-diet" class="content-link css-1c2ok3c">dietary changes to reduce oxalate</a> in your diet and increase hydration. They’ll also likely recommend that you reduce salty foods.</p></div><div><h3>Hippuric</h3></div><div><p>Hippuric acid crystals are rare. They may be either yellow-brown or clear, and they often resemble needle-like prisms or plates. Hippuric acid crystals are often found clustered together.</p></div><div><p>While they are sometimes caused by an acidic urine pH, hippuric acid crystals can also occur in healthy urine.</p></div><div><h3>Magnesium ammonium phosphate (struvite)</h3></div><div><p>Magnesium ammonium phosphate crystals are often colorless, rectangular prisms. They can be found in healthy urine, but they typically coincide with a <a href="https://www.healthline.com/health/urinary-tract-infection-adults" class="content-link css-1c2ok3c">urinary tract infection (UTI)</a>. Other symptoms of UTIs include:</p></div><div><ul><li>cloudy urine</li><li>frequent, intense urge to urinate</li><li>chills</li><li>nausea</li><li>fatigue</li><li>lower back pain</li><li>fever</li></ul></div><div><p>If a UTI is causing these crystals, your doctor will prescribe you antibiotics to clear up the infection.</p></div><div><h3>Calcium carbonate</h3></div><div><p>Calcium carbonate crystals are large, round discs with smooth surfaces. They’re often a light brown color. Crystals of calcium carbonate — which is a supplement you can take to get more calcium — are also frequently associated with kidney stones.</p></div><div><p>If you have calcium carbonate crystals in your urine, your doctor may recommend obtaining calcium <a href="https://www.healthline.com/nutrition/15-calcium-rich-foods" class="content-link css-1c2ok3c">through other means</a>, like adding more dairy to your diet, instead of <a href="https://www.healthline.com/nutrition/calcium-supplements" class="content-link css-1c2ok3c">supplements</a>.</p></div><div><h3>Bilirubin</h3></div><div><p>Bilirubin is made when the healthy destruction of red blood cells occurs. It’s passed through the liver.</p></div><div><p>Bilirubin crystals have a needle-like, granular appearance and are often very small and yellow in color. High levels of bilirubin or bilirubin crystals in your urine could indicate liver disease or poor liver function. Other symptoms may include nausea, pain, vomiting, jaundice, and fever.</p></div><div><p>Treatment depends on the underlying cause. Medications may be used to change the amount of protein that’s absorbed in the diet, especially in cases of <a href="https://www.healthline.com/health/cirrhosis" class="content-link css-1c2ok3c">cirrhosis</a>.</p></div><div><h3>Calcium phosphate</h3></div><div><p>Calcium phosphate crystals are colorless and may appear as star-like or needle-like, though they may also form plates. They may show up alone or in clusters. They often appear in alkaline urine, though they can be found in normal urine.</p></div><div><p>In rare cases, calcium phosphate crystals could by caused by <a href="https://www.healthline.com/health/hypoparathyroidism" class="content-link css-1c2ok3c">hypoparathyroidism</a>. Symptoms of this include tingling in the hands and muscle cramping.</p></div><div><p>Treatment may include drinking more water, getting more calcium, and taking vitamin D supplements.</p></div><div><h3>Ammonium biurate</h3></div><div><p>These crystals are brown spheres with spiky thorns. They almost resemble small bugs. They’re often found in alkaline urine, but they can also be seen in normal urine.</p></div><div><p>Sometimes ammonium biurate crystals only appear because the urine sample is old or has been poorly preserved. Because of this, recollecting a urine sample may be advised if these crystals appear.</p></div><div><h3>Cholesterol</h3></div><div><p>Cholesterol crystals are often clear and shaped like long rectangles, with a notch cut out at the corner. They’re most likely to appear after a urine sample has been refrigerated.</p></div><div><p>Cholesterol crystals can be found in both neutral and acid urine. They may be caused by renal tubular disease, which can lead to <a href="https://www.healthline.com/health/kidney-failure" class="content-link css-1c2ok3c">renal failure</a> if left untreated.</p></div><div><p>Treatment may involve alkali therapy to help treat chronic metabolic conditions, like renal tubular disease.</p></div><div><h3>Cystine</h3></div><div><p>Cystine is an amino acid, and it can cause urine crystals and kidney stones. Kidney stones caused by cystine acid are typically larger than most other kidney stones. It’s a rare condition, and often genetic.</p></div><div><p>The condition that causes cystine to bind together and form the crystals is called <a href="https://www.healthline.com/health/cystinuria" class="content-link css-1c2ok3c">cystinuria</a>. The crystals, when found in urine, are often shaped like hexagons and may be colorless. Symptoms may include blood in the urine, nausea and vomiting, and pain in the groin or back.</p></div><div><p>Your doctor may prescribe chelating medications, which help to dissolve the crystals.</p></div><div><h3>Leucine</h3></div><div><p>These crystals are yellow-brown discs with concentric rings like a tree trunk. Leucine crystals typically aren’t found in healthy urine. They’re found in acidic urine. They’re usually a symptom of severe liver disease. Other symptoms may include abdominal swelling, vomiting, nausea, disorientation, and <a href="https://www.healthline.com/symptom/malaise" class="content-link css-1c2ok3c">malaise</a>.</p></div><div><p>Treatment involves improving liver function and health immediately. This will include medications to reduce the risk of bleeding and reduce swelling caused by excess fluid.</p></div><div><h3>Tyrosine</h3></div><div><p>Tyrosine crystals are colorless and needle-like. They’re often found in acidic urine, and they may be caused by metabolic disorders like liver disease or tyrosinemia. Symptoms of tyrosinemia include difficulty gaining weight, fever, diarrhea, <a href="https://www.healthline.com/symptom/black-stools" class="content-link css-1c2ok3c">bloody stools</a>, and vomiting.</p></div><div><p>Treatment includes exercising, eating a healthy diet, and taking medications that may be able to treat high blood pressure, high cholesterol, and diabetes.</p></div><div><h3>Indinavir</h3></div><div><p>Indinavir is a medication used to treat HIV. It can cause the formation of crystals in the urine. Indinavir crystals may resemble starbursts, rectangular plates, or fans. Other symptoms of indinavir crystals may include back or flank pain.</p></div><span class="css-zya54r"></span></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="diagnosis"> How are urine crystals diagnosed?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>If your doctor suspects that you have urine crystals, they’ll likely first order a <a href="https://www.healthline.com/health/urinalysis" class="content-link css-1c2ok3c">urinalysis</a>. In some cases, your doctor may run a urinalysis as part of your wellness visit or annual checkup, even if you don’t have other complaints.</p></div><div><p>For the urinalysis test, you’ll be asked to provide a urine sample. The lab technician reviewing the sample will first observe it for any color or cloudiness that may indicate an infection. Bilirubin can turn urine a dark tea color, for example. Blood may be evident to the naked eye.</p></div><div><p>They’ll then use a dipstick to test for components within the urine.</p></div><div><p>The technician will finally examine the sample under a microscope, where they can actually see the crystals if any have formed.</p></div><div><p>Depending on what your doctor finds, they may order additional tests. If they find bilirubin in your urine, for example, they may order blood work or an ultrasound to evaluate your liver health. If urine crystals indicate high cholesterol, they’ll order a <a href="https://www.healthline.com/health/cholesterol-test" class="content-link css-1c2ok3c">blood test</a> to evaluate your current cholesterol levels.</p></div></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="prevention"> Is this preventable?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>Urine crystals that aren’t caused by underlying conditions like liver disease or genetic conditions can often be prevented. In some cases, even crystalluria triggered by genetic causes can be reduced with lifestyle or diet changes.</p></div><div><p>The most effective way to prevent urine crystals is to drink more water and stay hydrated. This helps dilute the chemical concentrations in the urine, preventing crystals from forming.</p></div><div><p>You can also make certain changes in your diet. Your doctor can help you determine what changes to make based on the type of crystals that you have. They may recommend cutting back on protein, for example, or reducing foods high in oxalate (as is the case for calcium oxalate crystals).</p></div><div><p>Avoiding salty foods can also help prevent a number of different urine crystals, so eliminating processed foods can be beneficial.</p></div><span class="css-zya54r"></span></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="outlook"> What’s the outlook?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>In many instances, urine crystals are highly treatable with lifestyle and diet changes. In some cases, medication may be required to treat underlying conditions.</p></div><div><p>If you experience any changes in your urine, make an appointment to see your doctor. Knowing exactly what type of crystals are forming will help you and your doctor to understand what’s causing the issue and how to treat it.</p></div></div></article><span class="css-zya54r"></span></div><div><div class="css-8q0s1n css-10dx3t"><div class="css-15lc7zf"><h3 id="bylineArticleTools">How we reviewed this article:</h3><div class="css-vrhe66"><button type="button" class="css-5sudr5"><div class="css-rre5oz"><span class="css-1d75hb8"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none" viewBox="0 0 20 20"><path fill="currentColor" fill-rule="evenodd" d="M0 10C0 4.477 4.477 0 10 0s10 4.477 10 10-4.477 10-10 10S0 15.523 0 10Zm18.5 0a8.5 8.5 0 1 0-17 0 8.5 8.5 0 0 0 17 0ZM10 4c-.823 0-1.5.677-1.5 1.518C8.5 6.323 9.177 7 10 7c.841 0 1.5-.677 1.5-1.482A1.5 1.5 0 0 0 10 4Zm0 4.5a1 1 0 0 1 1 1V15a1 1 0 1 1-2 0V9.5a1 1 0 0 1 1-1Z" clip-rule="evenodd"></path></svg></span><span>Sources</span></div></button><button type="button" open="" class="css-5sudr5"><div class="css-rre5oz"><span class="css-1d75hb8"><svg xmlns="http://www.w3.org/2000/svg" width="22" height="20" fill="none" viewBox="0 0 22 20"><path fill="currentColor" d="M3.181 9.732c.43 0 .793-.003 1.157 0 .66.007 1.023.613.696 1.19a221.037 221.037 0 0 1-1.774 3.072c-.329.557-1.038.553-1.366-.007-.6-1.02-1.191-2.043-1.774-3.072-.325-.575.043-1.177.708-1.183h.808c.055-.447.088-.882.165-1.309.557-3.104 2.187-5.489 4.913-7.056 3.679-2.114 8.05-1.75 11.352.913 2.062 1.664 3.29 3.84 3.625 6.473.678 5.323-3.012 10.254-8.308 11.103-3.215.515-6.044-.356-8.476-2.515-.297-.259-.373-.598-.233-.92.14-.323.454-.52.805-.454.187.04.361.13.504.26a8.618 8.618 0 0 0 4.383 2.108c3.72.63 7.513-1.394 9.084-4.846a8.521 8.521 0 0 0-6.047-11.911C8.763.618 4.201 3.71 3.353 8.4c-.078.427-.112.863-.172 1.331Z"></path><path fill="currentColor" d="M10.12 7.212V3.711a.778.778 0 0 1 1.535-.171c.017.104.024.21.02.314v6.25a.412.412 0 0 0 .168.368c1.125.89 2.241 1.791 3.362 2.686.26.208.405.466.342.803-.11.583-.76.829-1.244.459-.485-.37-.952-.756-1.427-1.135-.79-.633-1.578-1.27-2.373-1.898a.933.933 0 0 1-.385-.793c.008-1.125.003-2.252.003-3.382Z"></path></svg></span><span>History</span></div></button></div><div class="css-1ndif92"><div class="css-1ubyuqj"><div id="article-resources" role="region" class="css-1ugaz02"><div class="css-0">Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical journals and associations. We only use quality, credible sources to ensure content accuracy and integrity. You can learn more about how we ensure our content is accurate and current by reading our<!-- --> <a class="css-1c2ok3c" href="https://www.healthline.com/about/process">editorial policy</a>.</div><ul class="css-1vedeqe"><li class="css-1ti7iub"><cite><span>FinkelsteinVA, et al. (2006). Strategies for preventing calcium oxalate stones. DOI:</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://dx.doi.org/10.1503%2Fcmaj.051517">https://dx.doi.org/10.1503%2Fcmaj.051517</a></cite></li><li class="css-1ti7iub"><cite><span>FogazziGB. (1996). Crystalluria: A neglected aspect of urinary sediment analysis.</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://academic.oup.com/ndt/article-pdf/11/2/379/5159742/11-2-379.pdf">https://academic.oup.com/ndt/article-pdf/11/2/379/5159742/11-2-379.pdf</a></cite></li><li class="css-1ti7iub"><cite><span>FoleyKF, et al. (2015). Urine calcium: Laboratory measurement and clinical utility.DOI:</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1309/LM9SO94ZNBHEDNTM">https://doi.org/10.1309/LM9SO94ZNBHEDNTM</a></cite></li><li class="css-1ti7iub"><cite><span>KhanSR, et al. (2002). Presence of lipids in urine, crystals and stones:Implications for the formation of kidney stones. DOI:</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="http://dx.doi.org/10.1046/j.1523-1755.2002.00676.x">http://dx.doi.org/10.1046/j.1523-1755.2002.00676.x</a></cite></li><li class="css-1ti7iub"><cite><span>KoppJB, et al. (1997). Crystalluria and urinary tract abnormalities associated withindinavir.</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="http://annals.org/aim/article/710672/crystalluria-urinary-tract-abnormalities-associated-indinavir">http://annals.org/aim/article/710672/crystalluria-urinary-tract-abnormalities-associated-indinavir</a></cite></li><li class="css-1ti7iub"><cite><span>MayoClinic Staff. (2017). Acute liver failure.</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://www.mayoclinic.org/diseases-conditions/acute-liver-failure/symptoms-causes/syc-20352863">https://www.mayoclinic.org/diseases-conditions/acute-liver-failure/symptoms-causes/syc-20352863</a></cite></li><li class="css-1ti7iub"><cite><span>Typesof crystals found in human urine and their clinical significance. (2019).</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://laboratoryinfo.com/types-of-crystals-in-urine/">https://laboratoryinfo.com/types-of-crystals-in-urine/</a></cite></li><li class="css-1ti7iub"><cite><span>Tyrosinemiatype 1. (n.d.).</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://rarediseases.org/rare-diseases/tyrosinemia-type-1/">https://rarediseases.org/rare-diseases/tyrosinemia-type-1/</a></cite></li></ul></div></div></div><div open="" class="css-1ndif92"></div></div><div class="css-k1nhka" data-testid="share-tools"><p>Share this article</p><div class="css-14uyzrw"><div class="button-wrapper print"><a class="css-j5n0jw print button icon icon-hl-print" target="_blank" title="Print this page"></a></div><div class="button-wrapper email"><a class="css-j5n0jw email button icon icon-hl-email" target="_blank" title="Email this page"></a></div><div class="button-wrapper facebook"><a class="css-j5n0jw facebook button icon icon-hl-facebook" href="https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.healthline.com%2Fhealth%2Furine-crystals%3Futm_medium%3Dsocial%26utm_source%3Dfacebook%26utm_campaign%3Dsocial-sharebar-referred-desktop" rel="noopener 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src="//i0.wp.com/post.healthline.com/wp-content/uploads/2022/01/Alana-Biggers-500x500-Bio.png?w=105&amp;h=105" alt=""/></div></div><div><span><span><a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Medically reviewed</a> by <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Alana Biggers, M.D., MPH</a></span></span> — <span><span><span><span>Written by <span>Ana Gotter</span></span></span></span></span> — <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer"><span> Updated on June 9, 2020</span></a></div></section></div></div></div><span class="css-zya54r"></span><div data-empty="true" class="css-1y1s420"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="DMR1__slot" data-adbridg-ad-class="DMR1" data-ad="true" class="css-488q2e"></div></div><div class="css-h9jo37" data-dynamic-ads="true"><object type="text/html" data="about:blank" aria-label="advertisement" class="css-7vynax"></object></div></section></div></div></div><aside></aside><span style="font-size:0;line-height:0"></span><div><div id="read-next" class=" css-10ib5jr"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-z468a2"><h3 class="css-1g3kp27">Read this next</h3></div><section class="css-82r5pg"></section></div></div><ul class="css-1l95nvm"><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/sediment-in-urine;engagement|bottom page content promo click index|1" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is There Sediment in My Urine?|rn0" href="https://www.healthline.com/health/sediment-in-urine?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="Why Is There Sediment in My Urine?" src="https://media.post.rvohealth.io/wp-content/uploads/2020/09/urine_in_the_laboratory-732x549-thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/09/urine_in_the_laboratory-732x549-thumbnail-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/sediment-in-urine;engagement|bottom page content promo click index|1" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is There Sediment in My Urine?|rn0" href="https://www.healthline.com/health/sediment-in-urine?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Why Is There Sediment in My Urine?</a><section data-testid="byline" class="css-8he51f"><div class="css-1pz7193"><div class="css-quwpxp"><lazy-image alt="" src="https://media.post.rvohealth.io/wp-content/uploads/2018/11/elaine-luo.png"></lazy-image></div></div><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Elaine K. Luo, M.D.</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/sediment-in-urine;engagement|bottom page content promo click index|1" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is There Sediment in My Urine?|rn0" href="https://www.healthline.com/health/sediment-in-urine?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Urine should typically be clear and not murky, though the color can vary. Sediment, or particles, in your urine, can make it look cloudy. In many…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/sediment-in-urine;engagement|bottom page content promo click index|1" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is There Sediment in My Urine?|rn0" href="https://www.healthline.com/health/sediment-in-urine?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"><div data-empty="true" class="css-vhteyv"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="DCMR1__slot" data-adbridg-ad-class="DCMR1" data-ad="true" class="css-prb4v6"></div></div></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><span class="css-zya54r"></span></div><section class="css-82r5pg css-1ub4i5m"><div data-empty="true" class="css-vhteyv"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="DCMR1__slot" data-adbridg-ad-class="DCMR1" data-ad="true" class="css-prb4v6"></div></div></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/calcium-oxalate-crystals;engagement|bottom page content promo click index|2" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What You Need to Know About Calcium Oxalate Crystals|rn1" href="https://www.healthline.com/health/calcium-oxalate-crystals?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="What You Need to Know About Calcium Oxalate Crystals" src="https://media.post.rvohealth.io/wp-content/uploads/2020/08/5160-senior_man_drinking_fresh_water-732x549-thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/08/5160-senior_man_drinking_fresh_water-732x549-thumbnail-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/calcium-oxalate-crystals;engagement|bottom page content promo click index|2" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What You Need to Know About Calcium Oxalate Crystals|rn1" href="https://www.healthline.com/health/calcium-oxalate-crystals?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">What You Need to Know About Calcium Oxalate Crystals</a><section data-testid="byline" class="css-8he51f"><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Suzanne Falck, MD</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/calcium-oxalate-crystals;engagement|bottom page content promo click index|2" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What You Need to Know About Calcium Oxalate Crystals|rn1" href="https://www.healthline.com/health/calcium-oxalate-crystals?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Calcium oxalate crystals in the urine are the most common cause of kidney stones. Learn where they come from, how to prevent them, and how to remove…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/calcium-oxalate-crystals;engagement|bottom page content promo click index|2" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What You Need to Know About Calcium Oxalate Crystals|rn1" href="https://www.healthline.com/health/calcium-oxalate-crystals?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/dark-urine;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is My Urine Dark?|rn2" href="https://www.healthline.com/health/dark-urine?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="Why Is My Urine Dark?" src="https://media.post.rvohealth.io/wp-content/uploads/2020/09/Man-drinking-vegetable-juice-732x549-thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/09/Man-drinking-vegetable-juice-732x549-thumbnail-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/dark-urine;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is My Urine Dark?|rn2" href="https://www.healthline.com/health/dark-urine?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Why Is My Urine Dark?</a><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/dark-urine;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is My Urine Dark?|rn2" href="https://www.healthline.com/health/dark-urine?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Dark urine is usually caused by dehydration, but it can signal other conditions or be a side effect of your diet and medications. Learn more about the…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/dark-urine;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Is My Urine Dark?|rn2" href="https://www.healthline.com/health/dark-urine?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"><div data-empty="true" class="css-vhteyv"><div class="css-1hjaa0k"><span class="css-zya54r"></span></div><div id="DCMR2__slot" data-adbridg-ad-class="DCMR2" data-ad="true" class="css-prb4v6"></div></div></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/rbc-in-urine;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Are There Red Blood Cells in My Urine?|rn3" href="https://www.healthline.com/health/rbc-in-urine?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="Why Are There Red Blood Cells in My Urine?" src="https://media.post.rvohealth.io/wp-content/uploads/2020/09/Toilet_Paper_Bathroom-732x549-Thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/09/Toilet_Paper_Bathroom-732x549-Thumbnail-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/rbc-in-urine;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Are There Red Blood Cells in My Urine?|rn3" href="https://www.healthline.com/health/rbc-in-urine?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Why Are There Red Blood Cells in My Urine?</a><section data-testid="byline" class="css-8he51f"><div class="css-1pz7193"><div class="css-quwpxp"><lazy-image alt="" src="https://media.post.rvohealth.io/wp-content/uploads/2022/01/Debra-Sullivan-500x500-Bio.png"></lazy-image></div></div><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Debra Sullivan, Ph.D., MSN, R.N., CNE, COI</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/rbc-in-urine;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Are There Red Blood Cells in My Urine?|rn3" href="https://www.healthline.com/health/rbc-in-urine?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Red blood cells (RBCs) might show up in a urine sample. We’ll go over what’s normal, what’s not, and what can cause RBCs in your urine.</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/rbc-in-urine;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Are There Red Blood Cells in My Urine?|rn3" href="https://www.healthline.com/health/rbc-in-urine?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health-news/fda-oks-new-device-for-overactive-bladder;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|FDA OKs New Device for Overactive Bladder|rn4" href="https://www.healthline.com/health-news/fda-oks-new-device-for-overactive-bladder?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="FDA OKs New Device for Overactive Bladder" src="https://media.post.rvohealth.io/wp-content/uploads/2023/08/talking-to-doctor-office-732x549-thumbnail-copy-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2023/08/talking-to-doctor-office-732x549-thumbnail-copy-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health-news/fda-oks-new-device-for-overactive-bladder;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|FDA OKs New Device for Overactive Bladder|rn4" href="https://www.healthline.com/health-news/fda-oks-new-device-for-overactive-bladder?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">FDA OKs New Device for Overactive Bladder</a><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health-news/fda-oks-new-device-for-overactive-bladder;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|FDA OKs New Device for Overactive Bladder|rn4" href="https://www.healthline.com/health-news/fda-oks-new-device-for-overactive-bladder?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">The FDA has given marketing approval for a company that has released a new device for overactive bladder and urinary incontinence. </a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health-news/fda-oks-new-device-for-overactive-bladder;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|FDA OKs New Device for Overactive Bladder|rn4" href="https://www.healthline.com/health-news/fda-oks-new-device-for-overactive-bladder?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/burning-tip-of-urethra-no-std;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Does it Burn When I Pee?|rn5" href="https://www.healthline.com/health/burning-tip-of-urethra-no-std?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="Why Does it Burn When I Pee?" src="https://media.post.rvohealth.io/wp-content/uploads/2019/04/worried_man-732x549-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2019/04/worried_man-732x549-thumbnail.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/burning-tip-of-urethra-no-std;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Does it Burn When I Pee?|rn5" href="https://www.healthline.com/health/burning-tip-of-urethra-no-std?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Why Does it Burn When I Pee?</a><section data-testid="byline" class="css-8he51f"><div class="css-1pz7193"><div class="css-quwpxp"><lazy-image alt="" src="https://media.post.rvohealth.io/wp-content/uploads/2022/03/Avi-Varna-500x500-Bio.png"></lazy-image></div></div><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Avi Varma, MD, MPH, AAHIVS, FAAFP</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/burning-tip-of-urethra-no-std;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Does it Burn When I Pee?|rn5" href="https://www.healthline.com/health/burning-tip-of-urethra-no-std?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">If the tip of your urethra is burning but you don&#x27;t have an STI, you could be experiencing a UTI, inflammation from an irritant, or another condition…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/burning-tip-of-urethra-no-std;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Why Does it Burn When I Pee?|rn5" href="https://www.healthline.com/health/burning-tip-of-urethra-no-std?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/abdominal-pain-and-painful-urination;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What’s Causing My Abdominal Pain and Painful Urination?|rn6" href="https://www.healthline.com/health/abdominal-pain-and-painful-urination?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="What’s Causing My Abdominal Pain and Painful Urination?" src="https://media.post.rvohealth.io/wp-content/uploads/2020/09/194x105-Abdominal_Pain_and_Painful_Urination.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/09/194x105-Abdominal_Pain_and_Painful_Urination.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/abdominal-pain-and-painful-urination;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What’s Causing My Abdominal Pain and Painful Urination?|rn6" href="https://www.healthline.com/health/abdominal-pain-and-painful-urination?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">What’s Causing My Abdominal Pain and Painful Urination?</a><section data-testid="byline" class="css-8he51f"><div class="css-1pz7193"><div class="css-quwpxp"><lazy-image alt="" src="https://media.post.rvohealth.io/wp-content/uploads/2018/09/GrahamRogers.png"></lazy-image></div></div><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Graham Rogers, M.D.</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/abdominal-pain-and-painful-urination;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What’s Causing My Abdominal Pain and Painful Urination?|rn6" href="https://www.healthline.com/health/abdominal-pain-and-painful-urination?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Read about the causes of abdominal pain and painful urination, which include STIs, kidney stones, cancer, and more.</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/abdominal-pain-and-painful-urination;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What’s Causing My Abdominal Pain and Painful Urination?|rn6" href="https://www.healthline.com/health/abdominal-pain-and-painful-urination?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health/normal-urine-test-results-chart;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What Normal (and Abnormal) Urine Test Results Reveal|rn7" href="https://www.healthline.com/health/normal-urine-test-results-chart?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="What Normal (and Abnormal) Urine Test Results Reveal" src="https://media.post.rvohealth.io/wp-content/uploads/2023/03/urine-strip-test-732-549-feature-thumb-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2023/03/urine-strip-test-732-549-feature-thumb-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health/normal-urine-test-results-chart;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What Normal (and Abnormal) Urine Test Results Reveal|rn7" href="https://www.healthline.com/health/normal-urine-test-results-chart?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">What Normal (and Abnormal) Urine Test Results Reveal</a><section data-testid="byline" class="css-8he51f"><div class="css-1pz7193"><div class="css-quwpxp"><lazy-image alt="" src="https://media.post.rvohealth.io/wp-content/uploads/2022/01/Debra-Sullivan-500x500-Bio.png"></lazy-image></div></div><div><span><span>Medically reviewed by <a class="css-1c2ok3c css-ro87dg" href="https://www.healthline.com/medical-team">Debra Sullivan, Ph.D., MSN, R.N., CNE, COI</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/normal-urine-test-results-chart;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What Normal (and Abnormal) Urine Test Results Reveal|rn7" href="https://www.healthline.com/health/normal-urine-test-results-chart?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Urine analysis can provide useful information about your health. Learn what kinds of things urine tests check for, plus normal and abnormal ranges and…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/normal-urine-test-results-chart;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What Normal (and Abnormal) Urine Test Results Reveal|rn7" href="https://www.healthline.com/health/normal-urine-test-results-chart?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds|rn8" href="https://www.healthline.com/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds?utm_source=ReadNext" aria-label="image-link" data-ga4="Read Next button clicks" data-testid="image-link" aria-hidden="true" tabindex="-1"><div class="css-79elbk"><span class="css-rwmw5v css-1pf0x3y"><span class="css-1767n2d"><lazy-image alt="Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds" src="https://media.post.rvohealth.io/wp-content/uploads/2023/03/male-paddleboarding-732x549-thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2023/03/male-paddleboarding-732x549-thumbnail-732x549.jpg 200w" className="css-1lyqwde"></lazy-image></span></span><span class="css-1fb1nmp"><span class="css-a10gts"></span></span></div></a></figure><div class="css-u8uhak"><a class="css-sqa1yu" data-event="engagement|bottom page content promo click|/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds|rn8" href="https://www.healthline.com/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds</a><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds|rn8" href="https://www.healthline.com/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Researchers say exercise such as running and yoga can be as effective as medication in treating premature ejaculation</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Exercise May Be as Beneficial as Drugs in Treating Premature Ejaculation, Study Finds|rn8" href="https://www.healthline.com/health-news/exercise-may-be-as-beneficial-as-drugs-in-treating-premature-ejaculation-study-finds?utm_source=ReadNext" data-ga4="Read Next button clicks">READ MORE<span class="icon-hl-arrow-right selector css-2kgwd5"></span></a></div></div></div><section class="css-82r5pg css-1ub4i5m"></section></div></div></li><li class="css-12weawj"><div class="css-m260rd"><div class="css-1h1rean"><div class="css-1r7frvz"><div class="css-lm0pdr"><span style="font-size:0;line-height:0"></span><figure class="css-1e4ja14 css-f0t0lw"><a class="css-j5n0jw" data-event="engagement|bottom page content promo click|/health-news/grower-or-shower-scientists-define-categories-for-penis-erections;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|&#x27;Grower&#x27; 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or &#x27;Shower&#x27;: Scientists Define Categories for Penis Erections|rn9" href="https://www.healthline.com/health-news/grower-or-shower-scientists-define-categories-for-penis-erections?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">&#x27;Grower&#x27; or &#x27;Shower&#x27;: Scientists Define Categories for Penis Erections</a><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health-news/grower-or-shower-scientists-define-categories-for-penis-erections;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|&#x27;Grower&#x27; or &#x27;Shower&#x27;: Scientists Define Categories for Penis Erections|rn9" href="https://www.healthline.com/health-news/grower-or-shower-scientists-define-categories-for-penis-erections?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Researchers say the amount a penis grows during an erection has nothing to do with sexual performance, but it could be useful information in some…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health-news/grower-or-shower-scientists-define-categories-for-penis-erections;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|&#x27;Grower&#x27; 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We fact-check health claims, evaluate ingredients, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the prenatal vitamins that passed our vetting process. Then, we personally tested some of them to narrow down our list even further.\u003c/p\u003e"},"probiotics":{"metrics":[{"description":"vitamins, minerals, and supplements evaluated","count":"1320+"},{"description":"probiotic supplements evaluated","count":"55"},{"description":"probiotic brands evaluated","count":"35"}],"explanationTitle":"How we evaluate probiotics","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate ingredients, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the probiotics that passed our vetting process. Then, we personally tested some of them to narrow down our list even further.\u003c/p\u003e"},"vitamin-d":{"metrics":[{"description":"vitamins, minerals, and supplements evaluated","count":"1320+"},{"description":"vitamin D supplements evaluated","count":"40+"},{"description":"vitamin D brands evaluated","count":"25+"}],"explanationTitle":"How we evaluate vitamin D supplements","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate ingredients, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the vitamin D supplements that passed our vetting process. Then, we personally tested some of them to narrow down our list even further.\u003c/p\u003e"},"creatine":{"metrics":[{"description":"creatine supplements evaluated by our medical standards team","count":"35"},{"description":"creatine supplements met our criteria","count":"28"},{"description":"creatine supplements personally tested by our team","count":"9"}],"explanationTitle":"How we evaluate creatine supplements","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate ingredients, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the creatine supplements that passed our vetting process. Then, we personally tested some of them to narrow down our list even further.\u003c/p\u003e"},"mattresses":{"metrics":[{"description":"mattresses evaluated","count":"250+"},{"description":"mattress brands evaluated","count":"80+"}],"explanationTitle":"How we evaluate mattresses","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate materials, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the mattresses that passed our vetting process. Then, we \u003ca href=\"https://www.healthline.com/health/sleep/healthline-scores-how-we-rate-mattresses\"\u003escored each mattress\u003c/a\u003e to narrow down our list even further.\u003c/p\u003e"},"pillows":{"metrics":[{"description":"pillows evaluated","count":"210"},{"description":"pillow brands evaluated","count":"140+"}],"explanationTitle":"How we evaluate pillows","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate materials, and look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the products on this page, we considered all the pillows that passed our vetting process.\u003c/p\u003e"},"ed-telehealth":{"metrics":[{"description":"telehealth companies evaluated","count":"200+"},{"description":"online ED treatment providers evaluated","count":"20+"}],"explanationTitle":"How we evaluate online ED services","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We evaluate services for consistency with standards of care and best practices, and we look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the services on this page, we considered all the ED treatment services that passed our vetting process. Then, we \u003ca href=\"https://www.healthline.com/health/healthline-scores-how-we-evaluate-mens-telehealth-platforms\"\u003escored each service\u003c/a\u003e to narrow down our list even further.\u003c/p\u003e"},"birth-control-telehealth":{"metrics":[{"description":"telehealth companies evaluated","count":"200+"},{"description":"online birth control providers evaluated","count":"14"}],"explanationTitle":"How we evaluate online birth control services","explanationDescription":"\u003cp\u003eOur \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eMedical Standards and Insights team\u003c/a\u003e has carefully researched and vetted over 11,000 products and services. We evaluate services for consistency with standards of care and best practices, and we look into each brand’s reputation before sharing products and services on Healthline.\u003c/p\u003e\u003cp\u003eTo choose the services on this page, we considered all the birth control services that passed our vetting process. Then, we \u003ca href=\"https://www.healthline.com/health/how-we-review-birth-control\"\u003escored each service\u003c/a\u003e to narrow down our list even further.\u003c/p\u003e"},"hemp":{"metrics":[{"description":"hemp brands evaluated","count":"230+"},{"description":"hemp brands met our criteria","count":"57"},{"description":"hemp brands we've personally tested","count":"30+"}],"explanationTitle":"How we evaluate hemp products","explanationDescription":"\u003cp\u003eOur Medical Standards and Insights team has carefully researched and vetted over 11,000 products and services. We fact-check health claims, evaluate ingredients, and look into each brand’s reputation before sharing products and services on Healthline. The brand we feature in this article has passed our strict vetting process and has been thoroughly tested by our reviewers. \u003ca href=\"https://www.healthline.com/about/vet-brands-and-products\"\u003eRead more about how we vet brands and products.\u003c/a\u003e\u003c/p\u003e"}},"isPrependRecipeH2":false,"recipes":[],"hideTabs":false,"tabs":[{"id":"_noHeaderPrefixedContent","title":null,"header":null,"body":[{"tagName":"div","source":"\u003cp class=\"css-w2pt6r\"\u003eUrine contains a large number of different chemicals. Under some circumstances, these chemicals may solidify into salt crystals. This is called crystalluria.\u003c/p\u003e"},{"tagName":"p","source":"Crystals can be found in the urine of healthy individuals. They may be caused by minor issues like a slight excess of protein or vitamin C. Many types of urine crystals are relatively harmless."},{"tagName":"div","attributes":{"data-preamp":"serena-chatbot"},"source":""},{"tagName":"p","source":"In some cases, however, urine crystals can be indicators of a more serious underlying condition. Symptoms that would indicate a more serious condition could include:"},{"tagName":"ul","source":"\u003cli\u003efever\u003c/li\u003e\u003cli\u003esevere abdominal pain\u003c/li\u003e\u003cli\u003eblood in the urine\u003c/li\u003e\u003cli\u003ejaundice\u003c/li\u003e\u003cli\u003efatigue\u003c/li\u003e"},{"tagName":"p","source":"Read on to learn more about the different types of crystals and how they’re treated."}]},{"id":"types","title":"Types","isCollapsable":false,"header":[" Types of urine crystals"],"body":[{"tagName":"p","source":"There are a number of different types of urine crystals."},{"tagName":"h3","source":"Uric acid"},{"tagName":"p","source":"Uric acid crystals can be different types of shapes: barrel, plate-like, or diamond. They’re typically orange-brown or yellow in color."},{"tagName":"p","source":"They can be found in normal urine when caused by a protein-rich diet, which increases \u003ca href=\"https://www.healthline.com/health/uric-acid-urine\" class=\"content-link css-1c2ok3c\"\u003euric acid in the urine\u003c/a\u003e."},{"tagName":"p","source":"They can also be caused by \u003ca href=\"https://www.healthline.com/health/kidney-stones\" class=\"content-link css-1c2ok3c\"\u003ekidney stones\u003c/a\u003e, \u003ca href=\"https://www.healthline.com/health/gout-causes\" class=\"content-link css-1c2ok3c\"\u003egout\u003c/a\u003e, \u003ca href=\"https://www.healthline.com/health/chemotherapy\" class=\"content-link css-1c2ok3c\"\u003echemotherapy\u003c/a\u003e, or \u003ca href=\"https://www.healthline.com/health/tumor-lysis-syndrome\" class=\"content-link css-1c2ok3c\"\u003etumor lysis syndrome\u003c/a\u003e."},{"tagName":"p","source":"Symptoms of kidney stones include severe abdominal, flank, or groin pain; nausea; and blood in the urine. \u003ca href=\"https://www.healthline.com/health/gout-symptoms\" class=\"content-link css-1c2ok3c\"\u003eSymptoms of gout\u003c/a\u003e can include burning pain, stiffness, and swelling in a joint."},{"tagName":"p","source":"Treatment depends on the underlying condition, but staying hydrated is one of the best ways to treat the crystals themselves. \u003ca href=\"https://www.healthline.com/nutrition/19-hydrating-foods\" class=\"content-link css-1c2ok3c\"\u003eCheck out these water-rich foods that can help you stay hydrated.\u003c/a\u003e"},{"tagName":"h3","source":"Calcium oxalate"},{"tagName":"p","source":"Calcium oxalate crystals are shaped like dumbbells or envelopes. They’re colorless and can be found in healthy urine."},{"tagName":"p","source":"Calcium oxalate crystals are heavily associated with kidney stones, which can form when too much oxalate (found in such foods as spinach) is in the system. Kidney stone symptoms include severe groin or abdominal pain, nausea, fever, and difficulty passing urine. \u003ca href=\"https://www.healthline.com/nutrition/kidney-stone-remedies\" class=\"content-link css-1c2ok3c\"\u003eThese natural remedies can help you fight kidney stones at home.\u003c/a\u003e"},{"tagName":"p","source":"In some cases, calcium oxalate crystals can be caused by the ingestion of ethylene glycol, which is toxic and is an essential ingredient in antifreeze formulations. Exposure to this compound can cause symptoms such as:"},{"tagName":"ul","source":"\u003cli\u003ethroat and lung irritation\u003c/li\u003e\u003cli\u003ecentral nervous system problems\u003c/li\u003e\u003cli\u003erenal failure\u003c/li\u003e"},{"tagName":"p","source":"Your doctor may recommend \u003ca href=\"https://www.healthline.com/health-slideshow/what-is-a-low-oxalate-diet\" class=\"content-link css-1c2ok3c\"\u003edietary changes to reduce oxalate\u003c/a\u003e in your diet and increase hydration. They’ll also likely recommend that you reduce salty foods."},{"tagName":"h3","source":"Hippuric"},{"tagName":"p","source":"Hippuric acid crystals are rare. They may be either yellow-brown or clear, and they often resemble needle-like prisms or plates. Hippuric acid crystals are often found clustered together."},{"tagName":"p","source":"While they are sometimes caused by an acidic urine pH, hippuric acid crystals can also occur in healthy urine."},{"tagName":"h3","source":"Magnesium ammonium phosphate (struvite)"},{"tagName":"p","source":"Magnesium ammonium phosphate crystals are often colorless, rectangular prisms. They can be found in healthy urine, but they typically coincide with a \u003ca href=\"https://www.healthline.com/health/urinary-tract-infection-adults\" class=\"content-link css-1c2ok3c\"\u003eurinary tract infection (UTI)\u003c/a\u003e. Other symptoms of UTIs include:"},{"tagName":"ul","source":"\u003cli\u003ecloudy urine\u003c/li\u003e\u003cli\u003efrequent, intense urge to urinate\u003c/li\u003e\u003cli\u003echills\u003c/li\u003e\u003cli\u003enausea\u003c/li\u003e\u003cli\u003efatigue\u003c/li\u003e\u003cli\u003elower back pain\u003c/li\u003e\u003cli\u003efever\u003c/li\u003e"},{"tagName":"p","source":"If a UTI is causing these crystals, your doctor will prescribe you antibiotics to clear up the infection."},{"tagName":"h3","source":"Calcium carbonate"},{"tagName":"p","source":"Calcium carbonate crystals are large, round discs with smooth surfaces. They’re often a light brown color. Crystals of calcium carbonate — which is a supplement you can take to get more calcium — are also frequently associated with kidney stones."},{"tagName":"p","source":"If you have calcium carbonate crystals in your urine, your doctor may recommend obtaining calcium \u003ca href=\"https://www.healthline.com/nutrition/15-calcium-rich-foods\" class=\"content-link css-1c2ok3c\"\u003ethrough other means\u003c/a\u003e, like adding more dairy to your diet, instead of \u003ca href=\"https://www.healthline.com/nutrition/calcium-supplements\" class=\"content-link css-1c2ok3c\"\u003esupplements\u003c/a\u003e."},{"tagName":"h3","source":"Bilirubin"},{"tagName":"p","source":"Bilirubin is made when the healthy destruction of red blood cells occurs. It’s passed through the liver."},{"tagName":"p","source":"Bilirubin crystals have a needle-like, granular appearance and are often very small and yellow in color. High levels of bilirubin or bilirubin crystals in your urine could indicate liver disease or poor liver function. Other symptoms may include nausea, pain, vomiting, jaundice, and fever."},{"tagName":"p","source":"Treatment depends on the underlying cause. Medications may be used to change the amount of protein that’s absorbed in the diet, especially in cases of \u003ca href=\"https://www.healthline.com/health/cirrhosis\" class=\"content-link css-1c2ok3c\"\u003ecirrhosis\u003c/a\u003e."},{"tagName":"h3","source":"Calcium phosphate"},{"tagName":"p","source":"Calcium phosphate crystals are colorless and may appear as star-like or needle-like, though they may also form plates. They may show up alone or in clusters. They often appear in alkaline urine, though they can be found in normal urine."},{"tagName":"p","source":"In rare cases, calcium phosphate crystals could by caused by \u003ca href=\"https://www.healthline.com/health/hypoparathyroidism\" class=\"content-link css-1c2ok3c\"\u003ehypoparathyroidism\u003c/a\u003e. Symptoms of this include tingling in the hands and muscle cramping."},{"tagName":"p","source":"Treatment may include drinking more water, getting more calcium, and taking vitamin D supplements."},{"tagName":"h3","source":"Ammonium biurate"},{"tagName":"p","source":"These crystals are brown spheres with spiky thorns. They almost resemble small bugs. They’re often found in alkaline urine, but they can also be seen in normal urine."},{"tagName":"p","source":"Sometimes ammonium biurate crystals only appear because the urine sample is old or has been poorly preserved. Because of this, recollecting a urine sample may be advised if these crystals appear."},{"tagName":"h3","source":"Cholesterol"},{"tagName":"p","source":"Cholesterol crystals are often clear and shaped like long rectangles, with a notch cut out at the corner. They’re most likely to appear after a urine sample has been refrigerated."},{"tagName":"p","source":"Cholesterol crystals can be found in both neutral and acid urine. They may be caused by renal tubular disease, which can lead to \u003ca href=\"https://www.healthline.com/health/kidney-failure\" class=\"content-link css-1c2ok3c\"\u003erenal failure\u003c/a\u003e if left untreated."},{"tagName":"p","source":"Treatment may involve alkali therapy to help treat chronic metabolic conditions, like renal tubular disease."},{"tagName":"h3","source":"Cystine"},{"tagName":"p","source":"Cystine is an amino acid, and it can cause urine crystals and kidney stones. Kidney stones caused by cystine acid are typically larger than most other kidney stones. It’s a rare condition, and often genetic."},{"tagName":"p","source":"The condition that causes cystine to bind together and form the crystals is called \u003ca href=\"https://www.healthline.com/health/cystinuria\" class=\"content-link css-1c2ok3c\"\u003ecystinuria\u003c/a\u003e. The crystals, when found in urine, are often shaped like hexagons and may be colorless. Symptoms may include blood in the urine, nausea and vomiting, and pain in the groin or back."},{"tagName":"p","source":"Your doctor may prescribe chelating medications, which help to dissolve the crystals."},{"tagName":"h3","source":"Leucine"},{"tagName":"p","source":"These crystals are yellow-brown discs with concentric rings like a tree trunk. Leucine crystals typically aren’t found in healthy urine. They’re found in acidic urine. They’re usually a symptom of severe liver disease. Other symptoms may include abdominal swelling, vomiting, nausea, disorientation, and \u003ca href=\"https://www.healthline.com/symptom/malaise\" class=\"content-link css-1c2ok3c\"\u003emalaise\u003c/a\u003e."},{"tagName":"p","source":"Treatment involves improving liver function and health immediately. This will include medications to reduce the risk of bleeding and reduce swelling caused by excess fluid."},{"tagName":"h3","source":"Tyrosine"},{"tagName":"p","source":"Tyrosine crystals are colorless and needle-like. They’re often found in acidic urine, and they may be caused by metabolic disorders like liver disease or tyrosinemia. Symptoms of tyrosinemia include difficulty gaining weight, fever, diarrhea, \u003ca href=\"https://www.healthline.com/symptom/black-stools\" class=\"content-link css-1c2ok3c\"\u003ebloody stools\u003c/a\u003e, and vomiting."},{"tagName":"p","source":"Treatment includes exercising, eating a healthy diet, and taking medications that may be able to treat high blood pressure, high cholesterol, and diabetes."},{"tagName":"h3","source":"Indinavir"},{"tagName":"p","source":"Indinavir is a medication used to treat HIV. It can cause the formation of crystals in the urine. Indinavir crystals may resemble starbursts, rectangular plates, or fans. Other symptoms of indinavir crystals may include back or flank pain."}]},{"id":"diagnosis","title":"Diagnosis","isCollapsable":false,"header":[" How are urine crystals diagnosed?"],"body":[{"tagName":"p","source":"If your doctor suspects that you have urine crystals, they’ll likely first order a \u003ca href=\"https://www.healthline.com/health/urinalysis\" class=\"content-link css-1c2ok3c\"\u003eurinalysis\u003c/a\u003e. In some cases, your doctor may run a urinalysis as part of your wellness visit or annual checkup, even if you don’t have other complaints."},{"tagName":"p","source":"For the urinalysis test, you’ll be asked to provide a urine sample. The lab technician reviewing the sample will first observe it for any color or cloudiness that may indicate an infection. Bilirubin can turn urine a dark tea color, for example. Blood may be evident to the naked eye."},{"tagName":"p","source":"They’ll then use a dipstick to test for components within the urine."},{"tagName":"p","source":"The technician will finally examine the sample under a microscope, where they can actually see the crystals if any have formed."},{"tagName":"p","source":"Depending on what your doctor finds, they may order additional tests. If they find bilirubin in your urine, for example, they may order blood work or an ultrasound to evaluate your liver health. If urine crystals indicate high cholesterol, they’ll order a \u003ca href=\"https://www.healthline.com/health/cholesterol-test\" class=\"content-link css-1c2ok3c\"\u003eblood test\u003c/a\u003e to evaluate your current cholesterol levels."}]},{"id":"prevention","title":"Prevention","isCollapsable":false,"header":[" Is this preventable?"],"body":[{"tagName":"p","source":"Urine crystals that aren’t caused by underlying conditions like liver disease or genetic conditions can often be prevented. In some cases, even crystalluria triggered by genetic causes can be reduced with lifestyle or diet changes."},{"tagName":"p","source":"The most effective way to prevent urine crystals is to drink more water and stay hydrated. This helps dilute the chemical concentrations in the urine, preventing crystals from forming."},{"tagName":"p","source":"You can also make certain changes in your diet. Your doctor can help you determine what changes to make based on the type of crystals that you have. They may recommend cutting back on protein, for example, or reducing foods high in oxalate (as is the case for calcium oxalate crystals)."},{"tagName":"p","source":"Avoiding salty foods can also help prevent a number of different urine crystals, so eliminating processed foods can be beneficial."}]},{"id":"outlook","title":"Outlook","isCollapsable":false,"header":[" What’s the outlook?"],"body":[{"tagName":"p","source":"In many instances, urine crystals are highly treatable with lifestyle and diet changes. In some cases, medication may be required to treat underlying conditions."},{"tagName":"p","source":"If you experience any changes in your urine, make an appointment to see your doctor. Knowing exactly what type of crystals are forming will help you and your doctor to understand what’s causing the issue and how to treat it."}]}],"hasAffiliateLinks":false,"affiliates":[],"propsFor":{"articleResources":[{"displayLink":"10.1503/cmaj.051517","link":"https://dx.doi.org/10.1503%2Fcmaj.051517","title":{"tagName":"span","source":"FinkelsteinVA, et al. (2006). Strategies for preventing calcium oxalate stones. DOI:"}},{"displayLink":"academic.oup.com/ndt/article-pdf/11/2/379/5159742/11-2-379.pdf","link":"https://academic.oup.com/ndt/article-pdf/11/2/379/5159742/11-2-379.pdf","title":{"tagName":"span","source":"FogazziGB. (1996). Crystalluria: A neglected aspect of urinary sediment analysis."}},{"displayLink":"10.1309/LM9SO94ZNBHEDNTM","link":"https://doi.org/10.1309/LM9SO94ZNBHEDNTM","title":{"tagName":"span","source":"FoleyKF, et al. (2015). Urine calcium: Laboratory measurement and clinical utility.DOI:"}},{"displayLink":"10.1046/j.1523-1755.2002.00676.x","link":"http://dx.doi.org/10.1046/j.1523-1755.2002.00676.x","title":{"tagName":"span","source":"KhanSR, et al. (2002). Presence of lipids in urine, crystals and stones:Implications for the formation of kidney stones. DOI:"}},{"displayLink":"annals.org/aim/article/710672/crystalluria-urinary-tract-abnormalities-associated-indinavir","link":"http://annals.org/aim/article/710672/crystalluria-urinary-tract-abnormalities-associated-indinavir","title":{"tagName":"span","source":"KoppJB, et al. (1997). Crystalluria and urinary tract abnormalities associated withindinavir."}},{"displayLink":"mayoclinic.org/diseases-conditions/acute-liver-failure/symptoms-causes/syc-20352863","link":"https://www.mayoclinic.org/diseases-conditions/acute-liver-failure/symptoms-causes/syc-20352863","title":{"tagName":"span","source":"MayoClinic Staff. (2017). Acute liver failure."}},{"displayLink":"laboratoryinfo.com/types-of-crystals-in-urine/","link":"https://laboratoryinfo.com/types-of-crystals-in-urine/","title":{"tagName":"span","source":"Typesof crystals found in human urine and their clinical significance. (2019)."}},{"displayLink":"rarediseases.org/rare-diseases/tyrosinemia-type-1/","link":"https://rarediseases.org/rare-diseases/tyrosinemia-type-1/","title":{"tagName":"span","source":"Tyrosinemiatype 1. (n.d.)."}}],"byline":{"authors":[{"id":167,"name":{"display":"Ana Gotter","first":"Ana","last":"Gotter"},"type":{"value":"","label":""},"specialties":[],"bio":{},"avatar":{"title":"","src":""}}],"medicalReviewers":[{"id":116,"name":{"display":"Alana Biggers, M.D., MPH","first":"Alana","last":"Biggers, MD, MPH"},"userLogin":"abigger2","links":{"website":"","facebook":"https://www.facebook.com/dr.alanabiggers/","linkedin":"https://www.linkedin.com/in/alana-biggers-7a245b6/","twitter":"Doc_prevention","instagram":"https://www.instagram.com/dr.alanabiggers/","tiktok":""},"link":"/reviewers/alana-biggers-md","type":{"value":"medical_reviewer","label":"Medical Advisor"},"nid":"137751","specialties":[],"guestTitle":"","bio":{"text":"\u003cp\u003e\u003cspan style=\"font-weight: 400\"\u003eDr. Alana Biggers is an \u003c/span\u003e\u003ca href=\"https://www.abms.org/board-certification/\"\u003e\u003cspan style=\"font-weight: 400\"\u003eABMS board certified\u003c/span\u003e\u003c/a\u003e\u003cspan style=\"font-weight: 400\"\u003e internal medicine physician. 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