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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>Retrograde Pyelogram</h1><div data-preamp="social-proof-lessons"></div><div data-testid="byline"><section data-testid="byline" class="css-jy1umg"><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">Suzanne Falck, M.D., FACP</a></span></span> — <span><span><span><span>Written by <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Tim Jewell</a></span></span></span></span> — <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer"><span> Updated on September 17, 2018</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="#uses" class="css-1r1p1p8">Uses</a></li><li class="css-t753mo"><a href="#preparation" class="css-1r1p1p8">Preparation</a></li><li class="css-t753mo"><a href="#procedure" class="css-1r1p1p8">Procedure</a></li><li class="css-t753mo"><a href="#recovery" class="css-1r1p1p8">Recovery</a></li><li class="css-t753mo"><a href="#risks" class="css-1r1p1p8">Risks</a></li><li class="css-t753mo"><a href="#the-bottom-line" class="css-1r1p1p8">The bottom line</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><p class="h2"> What is a retrograde pyelogram?</p></div><div><div data-preamp="serena-chatbot"></div></div><div><p>A retrograde pyelogram (RPG) is an imaging test that uses contrast dye in your urinary tract to take a better <a href="https://www.healthline.com/health/x-ray" class="content-link css-1c2ok3c">X-ray</a> image of your urinary system. Your urinary system includes your kidneys, bladder, and everything that’s connected to them.</p></div><div><p>An RPG is similar to an <a href="https://www.healthline.com/health/intravenous-pyelogram" class="content-link css-1c2ok3c">intravenous pyelography</a> (IVP). An IVP is done by injecting contrast dye into a vein for better X-ray images. An RPG is done by <a href="https://www.healthline.com/health/cystoscopy" class="content-link css-1c2ok3c">cystoscopy</a>, which involves injecting contrast dye directly into your urinary tract through a thin tube called an endoscope.</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="uses"> What’s it used for?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>RPG is often used to check for urinary tract blockages, such as tumors or stones. Blockages are more likely to show up in your kidneys or ureters, which are the tubes that bring urine from your kidneys into your bladder. <a href="https://www.healthline.com/health/obstructive-uropathy" class="content-link css-1c2ok3c">Urinary tract blockages</a> can cause urine to collect in your urinary tract, which can lead to complications.</p></div><div><p>Your doctor might also choose to use an RPG if you have <a href="https://www.healthline.com/symptom/blood-in-urine" class="content-link css-1c2ok3c">blood in your urine</a> (also called hematuria). RPGs can also help your doctor get a better view of your urinary system before performing surgery.</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="preparation"> Do I need to prepare?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>Before having an RPG done, there are a few things you should do in preparation:</p></div><div><ul><li><strong>Fast for a few hours before the procedure.</strong> Many doctors will tell you to stop eating and drinking after midnight on the day of the procedure. You may not be able to eat or drink from 4 to 12 hours before the procedure.</li><li><strong>Take a laxative.</strong> You may be given an oral laxative or an enema to make sure your digestive system is cleaned out.</li><li><strong>Take some time off work.</strong> This is an outpatient procedure, meaning it only takes a few hours. However, your doctor will likely give you general anesthesia to keep you asleep during the procedure. You probably won’t be able to go to work and will need someone to drive you home.</li><li><strong>Stop taking certain medications.</strong> Your doctor may tell you to stop taking blood thinners or certain herbal supplements before the test.</li></ul></div><div><p>Make sure to tell your doctor beforehand if you’re:</p></div><div><ul><li>taking any medications or herbal supplements</li><li>pregnant or think you might be pregnant</li><li>allergic to any kind of contrast dye or iodine</li><li>allergic to certain medications, metals, or materials that may be used in the procedure, such as latex or anesthesia.</li></ul></div></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="procedure"> How’s it done?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>Before this procedure, you’ll be asked to:</p></div><div><ul><li>remove all jewelry and, in some cases, your clothing</li><li>put on a hospital gown (if you’re asked to remove your clothing)</li><li>lie flat on a table with your legs up.</li></ul></div><div><p>Then, an intravenous (IV) tube will be inserted in a vein in your arm to give you anesthesia.</p></div><div><p>During the RPG, your doctor or urologist will:</p></div><div><ol><li>insert an endoscope into your urethra</li><li>push the endoscope slowly and carefully through your urethra until it reaches your bladder, at this point, your doctor may also insert a catheter into your bladder</li><li>introduce dye into the urinary system</li><li>use a process called dynamic fluoroscopy to take X-rays that can be viewed in real time</li><li>remove the endoscope (and catheter, if used) from your body</li></ol></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="recovery"> What’s recovery like?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>After the procedure, you’ll stay in a recovery room until you wake up and your breathing, heart rate, and blood pressure return to normal. Your doctor will monitor your urine for any blood or signs of complications.</p></div><div><p>Next, you’ll either go to a hospital room or be cleared to go home. Your doctor may prescribe pain medication, such as acetaminophen (Tylenol) to manage any pain or discomfort you might feel when urinating. Don’t take certain pain medications, such as aspirin, that can increase your risk of bleeding.</p></div><div><p>Your doctor may ask you to watch your urine for blood or other abnormalities for a few days to make sure there are no complications.</p></div><div><p>Call your doctor right away if you notice any of these symptoms:</p></div><div><ul><li>high fever (101°F or higher)</li><li>bleeding or swelling around your urethral opening</li><li>unbearable pain when urinating</li><li>blood in your urine</li><li>trouble urinating</li></ul></div></div><div class="css-1avyp1d"><span style="font-size:0;line-height:0"></span><div><h2><div><a class="chartbeat-section" name="risks"> Are there any risks?</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>While RPG is a relatively safe procedure, there are a few risks, including:</p></div><div><ul><li>radiation exposure from X-rays</li><li>birth defects if you’re pregnant during the procedure</li><li>severe allergic reactions, such as anaphylaxis, to dye or materials used in the procedure</li><li>inflammation throughout your body (sepsis)</li><li>nausea and vomiting</li><li>internal bleeding (hemorrhage)</li><li>a hole in your bladder caused by tools used in the procedure</li><li><a href="https://www.healthline.com/health/urinary-tract-infection-adults" class="content-link css-1c2ok3c">urinary tract infection</a></li></ul></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="inline13__slot" data-adbridg-ad-class="inline13__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="the-bottom-line"> Takeaway</a></div></h2></div><span style="font-size:0;line-height:0"></span><div><p>A retrograde pyelogram is a quick, relatively painless procedure that helps identify abnormalities in your urinary tract. It can also help your doctor do other urinary procedures or surgeries safely.</p></div><div><p>As with any procedure that involves anesthesia, some risks are involved. Talk to your doctor about your overall health and medical history before getting this procedure done to avoid any long-term complications.</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></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>Cystoscopy with retrograde pyelogram (RPG). (2018).</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="http://www.urologyclinic.com/athens-cystoscopy-retrograde-pyelogram.php">http://www.urologyclinic.com/athens-cystoscopy-retrograde-pyelogram.php</a></cite></li><li class="css-1ti7iub"><cite><span>KimSH, et al. (2017). Retrograde pyelography predicts retrograde ureteral stentingfailure and reduces unnecessary stenting trials in patients with advancednon-urological malignant ureteral obstruction. DOI:</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1371/journal.pone.0184965">https://doi.org/10.1371/journal.pone.0184965</a></cite></li><li class="css-1ti7iub"><cite><span>Mayo Clinic Staff. (2018). Cystoscopy.</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://www.mayoclinic.org/tests-procedures/cystoscopy/basics/definition/prc-20013535">https://www.mayoclinic.org/tests-procedures/cystoscopy/basics/definition/prc-20013535</a></cite></li><li class="css-1ti7iub"><cite><span>Pooli A, et al. (2017). Delayed severeanaphylactoid reaction following retrograde pyelogram: A case report. DOI:</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1177/2050313X17745212">https://doi.org/10.1177/2050313X17745212</a></cite></li><li class="css-1ti7iub"><cite><span>Taqi KM, et al. (2017). Delayed diagnosis ofureteral injury following penetrating abdominal trauma: A case report andreview of the literature.</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://www.ncbi.nlm.nih.gov/pubmed/29273706">https://www.ncbi.nlm.nih.gov/pubmed/29273706</a></cite></li><li class="css-1ti7iub"><cite><span>What is retrograde pyelography? (n.d.).</span><br/><a class="css-1c2ok3c css-1ivue52" target="_blank" rel="noopener noreferrer" href="https://www.urologyhealth.org/urologic-conditions/retrograde-pyelography">https://www.urologyhealth.org/urologic-conditions/retrograde-pyelography</a></cite></li></ul></div></div></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%2Fretrograde-pyelogram%3Futm_medium%3Dsocial%26utm_source%3Dfacebook%26utm_campaign%3Dsocial-sharebar-referred-desktop" rel="noopener 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rel="noopener noreferrer">Medically reviewed</a> by <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Suzanne Falck, M.D., FACP</a></span></span> — <span><span><span><span>Written by <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer">Tim Jewell</a></span></span></span></span> — <a class="css-1c2ok3c css-ro87dg" target="_blank" rel="noopener noreferrer"><span> Updated on September 17, 2018</span></a></div></section></div></div></div><span class="css-zya54r"></span><div data-empty="true" class="css-1d8h8gm"><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=" 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href="https://www.healthline.com/health/pyelonephritis?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Pyelonephritis</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/pyelonephritis;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Pyelonephritis|rn2" href="https://www.healthline.com/health/pyelonephritis?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Pyelonephritis is a sudden and severe kidney infection. This condition causes the kidneys to swell and can cause permanent damage. Pyelonephritis can…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/pyelonephritis;engagement|bottom page content promo click index|3" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Pyelonephritis|rn2" href="https://www.healthline.com/health/pyelonephritis?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/overactive-bladder-vs-urinary-incontinence-vs-uti;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?|rn3" href="https://www.healthline.com/health/overactive-bladder-vs-urinary-incontinence-vs-uti?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="Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?" src="https://media.post.rvohealth.io/wp-content/uploads/2020/03/Female_Walk_Hallway-732x549-Thumbnail-732x549.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2020/03/Female_Walk_Hallway-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/overactive-bladder-vs-urinary-incontinence-vs-uti;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?|rn3" href="https://www.healthline.com/health/overactive-bladder-vs-urinary-incontinence-vs-uti?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?</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/2023/05/Meredith-Goodwin-Headshot-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">Meredith Goodwin, MD, FAAFP</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/overactive-bladder-vs-urinary-incontinence-vs-uti;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?|rn3" href="https://www.healthline.com/health/overactive-bladder-vs-urinary-incontinence-vs-uti?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Although all three conditions are similar, learn the differences between overactive bladder, urinary incontinence, and UTI, including what causes each.</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/overactive-bladder-vs-urinary-incontinence-vs-uti;engagement|bottom page content promo click index|4" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?|rn3" href="https://www.healthline.com/health/overactive-bladder-vs-urinary-incontinence-vs-uti?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/chronic-urinary-tract-infection;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Chronic Urinary Tract Infections (UTIs)|rn4" href="https://www.healthline.com/health/chronic-urinary-tract-infection?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="Chronic Urinary Tract Infections (UTIs)" src="https://media.post.rvohealth.io/wp-content/uploads/2024/04/female-holding-abdomen-732-549-feature-thumb.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/04/female-holding-abdomen-732-549-feature-thumb.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/chronic-urinary-tract-infection;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Chronic Urinary Tract Infections (UTIs)|rn4" href="https://www.healthline.com/health/chronic-urinary-tract-infection?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Chronic Urinary Tract Infections (UTIs)</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/Lauren-Castiello-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">Lauren Castiello, MS, AGNP-C</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/chronic-urinary-tract-infection;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Chronic Urinary Tract Infections (UTIs)|rn4" href="https://www.healthline.com/health/chronic-urinary-tract-infection?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Chronic urinary tract infections (UTIs) are infections of the urinary tract that don’t respond to treatment. </a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/chronic-urinary-tract-infection;engagement|bottom page content promo click index|5" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Chronic Urinary Tract Infections (UTIs)|rn4" href="https://www.healthline.com/health/chronic-urinary-tract-infection?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/hydronephrosis-in-newborns;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding Hydronephrosis in Newborns|rn5" href="https://www.healthline.com/health/hydronephrosis-in-newborns?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="Understanding Hydronephrosis in Newborns" src="https://media.post.rvohealth.io/wp-content/uploads/2024/08/female-doctor-with-mother-holding-newborn-infant-check-up-appointment-732x549-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/08/female-doctor-with-mother-holding-newborn-infant-check-up-appointment-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/hydronephrosis-in-newborns;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding Hydronephrosis in Newborns|rn5" href="https://www.healthline.com/health/hydronephrosis-in-newborns?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Understanding Hydronephrosis in Newborns</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/Karen-Richardson-Gill-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">Karen Gill, M.D.</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/hydronephrosis-in-newborns;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding Hydronephrosis in Newborns|rn5" href="https://www.healthline.com/health/hydronephrosis-in-newborns?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Hydronephrosis in newborns is a condition that causes enlarged kidneys at birth. It can resolve by itself, but some babies need treatment. </a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/hydronephrosis-in-newborns;engagement|bottom page content promo click index|6" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding Hydronephrosis in Newborns|rn5" href="https://www.healthline.com/health/hydronephrosis-in-newborns?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/vesicoureteral-reflux-grading;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?|rn6" href="https://www.healthline.com/health/vesicoureteral-reflux-grading?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="How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?" src="https://media.post.rvohealth.io/wp-content/uploads/2024/08/father-daughter-lap-medical-check-up-doctor-pediatrician-732x549-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/08/father-daughter-lap-medical-check-up-doctor-pediatrician-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/vesicoureteral-reflux-grading;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?|rn6" href="https://www.healthline.com/health/vesicoureteral-reflux-grading?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?</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/Mia-Armstrong-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">Mia Armstrong, MD</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/vesicoureteral-reflux-grading;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?|rn6" href="https://www.healthline.com/health/vesicoureteral-reflux-grading?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">VUR is graded 1 through 5 based on the severity of the disease. Low grade VUR may go away on its own while high grade VUR may require surgery.</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/vesicoureteral-reflux-grading;engagement|bottom page content promo click index|7" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?|rn6" href="https://www.healthline.com/health/vesicoureteral-reflux-grading?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/what-causes-bladder-pain-without-infection;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding What Causes Bladder Pain Without Infection|rn7" href="https://www.healthline.com/health/what-causes-bladder-pain-without-infection?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="Understanding What Causes Bladder Pain Without Infection" src="https://media.post.rvohealth.io/wp-content/uploads/2024/07/woman-with-abdominal-pain-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/07/woman-with-abdominal-pain-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/what-causes-bladder-pain-without-infection;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding What Causes Bladder Pain Without Infection|rn7" href="https://www.healthline.com/health/what-causes-bladder-pain-without-infection?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Understanding What Causes Bladder Pain Without Infection</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/Alana-Biggers-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">Alana Biggers, M.D., MPH</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/what-causes-bladder-pain-without-infection;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding What Causes Bladder Pain Without Infection|rn7" href="https://www.healthline.com/health/what-causes-bladder-pain-without-infection?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">It can be hard to know what causes bladder pain without infection, but other conditions like IBS, fibromyalgia, and damage to the lining of the…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/what-causes-bladder-pain-without-infection;engagement|bottom page content promo click index|8" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Understanding What Causes Bladder Pain Without Infection|rn7" href="https://www.healthline.com/health/what-causes-bladder-pain-without-infection?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/bladder-prolapse;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What to Know About Bladder Prolapse (Cystocele)|rn8" href="https://www.healthline.com/health/bladder-prolapse?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 to Know About Bladder Prolapse (Cystocele)" src="https://media.post.rvohealth.io/wp-content/uploads/2024/06/senior-woman-sitting-on-couch-making-a-phone-call-732x549-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/06/senior-woman-sitting-on-couch-making-a-phone-call-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/bladder-prolapse;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What to Know About Bladder Prolapse (Cystocele)|rn8" href="https://www.healthline.com/health/bladder-prolapse?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">What to Know About Bladder Prolapse (Cystocele)</a><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/bladder-prolapse;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What to Know About Bladder Prolapse (Cystocele)|rn8" href="https://www.healthline.com/health/bladder-prolapse?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">Bladder prolapse happens when your bladder pushes through your pelvic floor and into your vagina. It is treatable, especially in early stages.</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/bladder-prolapse;engagement|bottom page content promo click index|9" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|What to Know About Bladder Prolapse (Cystocele)|rn8" href="https://www.healthline.com/health/bladder-prolapse?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/stages-of-interstitial-cystitis;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Are There Stages Of Interstitial Cystitis?|rn9" href="https://www.healthline.com/health/stages-of-interstitial-cystitis?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="Are There Stages Of Interstitial Cystitis?" src="https://media.post.rvohealth.io/wp-content/uploads/2024/06/hl-cystitis-732x549-thumbnail.jpg" srcSet="https://media.post.rvohealth.io/wp-content/uploads/2024/06/hl-cystitis-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/stages-of-interstitial-cystitis;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Are There Stages Of Interstitial Cystitis?|rn9" href="https://www.healthline.com/health/stages-of-interstitial-cystitis?utm_source=ReadNext" data-testid="title-link" data-ga4="Read Next button clicks">Are There Stages Of Interstitial Cystitis?</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/Angelica-Balingit-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">Angelica Balingit, MD</a></span></span></div></section><p class=""><a class="css-onvglr" data-event="engagement|bottom page content promo click|/health/stages-of-interstitial-cystitis;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Are There Stages Of Interstitial Cystitis?|rn9" href="https://www.healthline.com/health/stages-of-interstitial-cystitis?utm_source=ReadNext" data-testid="text-link" data-ga4="Read Next button clicks" aria-hidden="true" tabindex="-1">There are no official stages of interstitial cystitis, but doctors refer to three stages based on the severity of symptoms an individual experiences…</a></p><a class="css-v5yzal css-ysgmro" data-event="engagement|bottom page content promo click|/health/stages-of-interstitial-cystitis;engagement|bottom page content promo click index|10" data-element-event="INTERNAL LINK|FOOTER|Any Page|Read This Next|LINK|Are There Stages Of Interstitial Cystitis?|rn9" href="https://www.healthline.com/health/stages-of-interstitial-cystitis?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></ul></div></div></div><span 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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":"p","attributes":{"className":"h2"},"source":" What is a retrograde pyelogram?"},{"tagName":"div","attributes":{"data-preamp":"serena-chatbot"},"source":""},{"tagName":"p","source":"A retrograde pyelogram (RPG) is an imaging test that uses contrast dye in your urinary tract to take a better \u003ca href=\"https://www.healthline.com/health/x-ray\" class=\"content-link css-1c2ok3c\"\u003eX-ray\u003c/a\u003e image of your urinary system. Your urinary system includes your kidneys, bladder, and everything that’s connected to them."},{"tagName":"p","source":"An RPG is similar to an \u003ca href=\"https://www.healthline.com/health/intravenous-pyelogram\" class=\"content-link css-1c2ok3c\"\u003eintravenous pyelography\u003c/a\u003e (IVP). An IVP is done by injecting contrast dye into a vein for better X-ray images. An RPG is done by \u003ca href=\"https://www.healthline.com/health/cystoscopy\" class=\"content-link css-1c2ok3c\"\u003ecystoscopy\u003c/a\u003e, which involves injecting contrast dye directly into your urinary tract through a thin tube called an endoscope."}]},{"id":"uses","title":"Uses","isCollapsable":false,"header":[" What’s it used for?"],"body":[{"tagName":"p","source":"RPG is often used to check for urinary tract blockages, such as tumors or stones. Blockages are more likely to show up in your kidneys or ureters, which are the tubes that bring urine from your kidneys into your bladder. \u003ca href=\"https://www.healthline.com/health/obstructive-uropathy\" class=\"content-link css-1c2ok3c\"\u003eUrinary tract blockages\u003c/a\u003e can cause urine to collect in your urinary tract, which can lead to complications."},{"tagName":"p","source":"Your doctor might also choose to use an RPG if you have \u003ca href=\"https://www.healthline.com/symptom/blood-in-urine\" class=\"content-link css-1c2ok3c\"\u003eblood in your urine\u003c/a\u003e (also called hematuria). RPGs can also help your doctor get a better view of your urinary system before performing surgery."}]},{"id":"preparation","title":"Preparation","isCollapsable":false,"header":[" Do I need to prepare?"],"body":[{"tagName":"p","source":"Before having an RPG done, there are a few things you should do in preparation:"},{"tagName":"ul","source":"\u003cli\u003e\u003cstrong\u003eFast for a few hours before the procedure.\u003c/strong\u003e Many doctors will tell you to stop eating and drinking after midnight on the day of the procedure. You may not be able to eat or drink from 4 to 12 hours before the procedure.\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eTake a laxative.\u003c/strong\u003e You may be given an oral laxative or an enema to make sure your digestive system is cleaned out.\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eTake some time off work.\u003c/strong\u003e This is an outpatient procedure, meaning it only takes a few hours. However, your doctor will likely give you general anesthesia to keep you asleep during the procedure. You probably won’t be able to go to work and will need someone to drive you home.\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eStop taking certain medications.\u003c/strong\u003e Your doctor may tell you to stop taking blood thinners or certain herbal supplements before the test.\u003c/li\u003e"},{"tagName":"p","source":"Make sure to tell your doctor beforehand if you’re:"},{"tagName":"ul","source":"\u003cli\u003etaking any medications or herbal supplements\u003c/li\u003e\u003cli\u003epregnant or think you might be pregnant\u003c/li\u003e\u003cli\u003eallergic to any kind of contrast dye or iodine\u003c/li\u003e\u003cli\u003eallergic to certain medications, metals, or materials that may be used in the procedure, such as latex or anesthesia.\u003c/li\u003e"}]},{"id":"procedure","title":"Procedure","isCollapsable":false,"header":[" How’s it done?"],"body":[{"tagName":"p","source":"Before this procedure, you’ll be asked to:"},{"tagName":"ul","source":"\u003cli\u003eremove all jewelry and, in some cases, your clothing\u003c/li\u003e\u003cli\u003eput on a hospital gown (if you’re asked to remove your clothing)\u003c/li\u003e\u003cli\u003elie flat on a table with your legs up.\u003c/li\u003e"},{"tagName":"p","source":"Then, an intravenous (IV) tube will be inserted in a vein in your arm to give you anesthesia."},{"tagName":"p","source":"During the RPG, your doctor or urologist will:"},{"tagName":"ol","source":"\u003cli\u003einsert an endoscope into your urethra\u003c/li\u003e\u003cli\u003epush the endoscope slowly and carefully through your urethra until it reaches your bladder, at this point, your doctor may also insert a catheter into your bladder\u003c/li\u003e\u003cli\u003eintroduce dye into the urinary system\u003c/li\u003e\u003cli\u003euse a process called dynamic fluoroscopy to take X-rays that can be viewed in real time\u003c/li\u003e\u003cli\u003eremove the endoscope (and catheter, if used) from your body\u003c/li\u003e"}]},{"id":"recovery","title":"Recovery","isCollapsable":false,"header":[" What’s recovery like?"],"body":[{"tagName":"p","source":"After the procedure, you’ll stay in a recovery room until you wake up and your breathing, heart rate, and blood pressure return to normal. Your doctor will monitor your urine for any blood or signs of complications."},{"tagName":"p","source":"Next, you’ll either go to a hospital room or be cleared to go home. Your doctor may prescribe pain medication, such as acetaminophen (Tylenol) to manage any pain or discomfort you might feel when urinating. Don’t take certain pain medications, such as aspirin, that can increase your risk of bleeding."},{"tagName":"p","source":"Your doctor may ask you to watch your urine for blood or other abnormalities for a few days to make sure there are no complications."},{"tagName":"p","source":"Call your doctor right away if you notice any of these symptoms:"},{"tagName":"ul","source":"\u003cli\u003ehigh fever (101°F or higher)\u003c/li\u003e\u003cli\u003ebleeding or swelling around your urethral opening\u003c/li\u003e\u003cli\u003eunbearable pain when urinating\u003c/li\u003e\u003cli\u003eblood in your urine\u003c/li\u003e\u003cli\u003etrouble urinating\u003c/li\u003e"}]},{"id":"risks","title":"Risks","isCollapsable":false,"header":[" Are there any risks?"],"body":[{"tagName":"p","source":"While RPG is a relatively safe procedure, there are a few risks, including:"},{"tagName":"ul","source":"\u003cli\u003eradiation exposure from X-rays\u003c/li\u003e\u003cli\u003ebirth defects if you’re pregnant during the procedure\u003c/li\u003e\u003cli\u003esevere allergic reactions, such as anaphylaxis, to dye or materials used in the procedure\u003c/li\u003e\u003cli\u003einflammation throughout your body (sepsis)\u003c/li\u003e\u003cli\u003enausea and vomiting\u003c/li\u003e\u003cli\u003einternal bleeding (hemorrhage)\u003c/li\u003e\u003cli\u003ea hole in your bladder caused by tools used in the procedure\u003c/li\u003e\u003cli\u003e\u003ca href=\"https://www.healthline.com/health/urinary-tract-infection-adults\" class=\"content-link css-1c2ok3c\"\u003eurinary tract infection\u003c/a\u003e\u003c/li\u003e"}]},{"id":"the-bottom-line","title":"The bottom line","isCollapsable":false,"header":[" Takeaway"],"body":[{"tagName":"p","source":"A retrograde pyelogram is a quick, relatively painless procedure that helps identify abnormalities in your urinary tract. It can also help your doctor do other urinary procedures or surgeries safely."},{"tagName":"p","source":"As with any procedure that involves anesthesia, some risks are involved. Talk to your doctor about your overall health and medical history before getting this procedure done to avoid any long-term complications."}]}],"hasAffiliateLinks":false,"affiliates":[],"propsFor":{"articleResources":[{"displayLink":"urologyclinic.com/athens-cystoscopy-retrograde-pyelogram.php","link":"http://www.urologyclinic.com/athens-cystoscopy-retrograde-pyelogram.php","title":{"tagName":"span","source":"Cystoscopy with retrograde pyelogram (RPG). (2018)."}},{"displayLink":"doi.org/10.1371/journal.pone.0184965","link":"https://doi.org/10.1371/journal.pone.0184965","title":{"tagName":"span","source":"KimSH, et al. (2017). Retrograde pyelography predicts retrograde ureteral stentingfailure and reduces unnecessary stenting trials in patients with advancednon-urological malignant ureteral obstruction. DOI:"}},{"displayLink":"mayoclinic.org/tests-procedures/cystoscopy/basics/definition/prc-20013535","link":"https://www.mayoclinic.org/tests-procedures/cystoscopy/basics/definition/prc-20013535","title":{"tagName":"span","source":"Mayo Clinic Staff. (2018). Cystoscopy."}},{"displayLink":"10.1177/2050313X17745212","link":"https://doi.org/10.1177/2050313X17745212","title":{"tagName":"span","source":"Pooli A, et al. (2017). Delayed severeanaphylactoid reaction following retrograde pyelogram: A case report. DOI:"}},{"displayLink":"ncbi.nlm.nih.gov/pubmed/29273706","link":"https://www.ncbi.nlm.nih.gov/pubmed/29273706","title":{"tagName":"span","source":"Taqi KM, et al. (2017). Delayed diagnosis ofureteral injury following penetrating abdominal trauma: A case report andreview of the literature."}},{"displayLink":"urologyhealth.org/urologic-conditions/retrograde-pyelography","link":"https://www.urologyhealth.org/urologic-conditions/retrograde-pyelography","title":{"tagName":"span","source":"What is retrograde pyelography? (n.d.)."}}],"byline":{"authors":[{"id":193,"name":{"display":"Tim Jewell","first":"Tim","last":"Jewell"},"link":"/authors/tim-jewell","type":{"value":"author","label":"Author"},"nid":"","specialties":[],"guestTitle":"","bio":{"text":"\u003cp\u003eTim Jewell is a freelance writer, linguist, and communications expert based in Southern California. At age 4, he read a book called “1001 Questions about the Human Body” and has since dedicated his life to breaking down the complexities and stigmas around the human body and the cultures surrounding it, especially in relation to mental health, sexual health, and gender identity. Follow him on \u003ca href=\"http://TimJewell16\"\u003eTwitter\u003c/a\u003e and \u003ca href=\"https://www.instagram.com/diakritik/\"\u003eInstagram\u003c/a\u003e.\u003c/p\u003e\n"},"avatar":{"title":"","width":200,"height":200,"src":"https://post.healthline.com/wp-content/uploads/2019/11/Tim_Jewell_bw.png"}}],"medicalReviewers":[{"id":155,"name":{"display":"Suzanne Falck, M.D., FACP","first":"Suzanne","last":"Falck, MD"},"userLogin":"sfalck","links":{"website":"","facebook":"","linkedin":"","twitter":"","instagram":"","tiktok":""},"type":{"value":"medical_reviewer","label":"Medical Advisor"},"nid":"137770","specialties":[],"guestTitle":"","bio":{"text":""},"avatar":{"title":"","src":""}}],"id":"wp-569895","updateReason":[],"factCheckedBy":"","factCheckers":[],"articleHistory":[],"articleDates":{"factChecked":{"date":null,"display":""},"medicallyReviewed":{"date":1516694400,"display":"January 23, 2018"},"published":{"date":1516694400,"display":"January 23, 2018"},"lastUpdates":{"date":1537162375,"display":"September 17, 2018"},"modified":{"date":1537162375,"display":"September 17, 2018"}},"type":"healthfeature","language":"en"},"isCorp":false,"isReference":false,"isPremiumVideo":false,"isStandaloneVideo":false,"isStandaloneRecipe":false,"schemaObj":{"@context":"https://schema.org","publisher":{"@type":"Organization","name":"Healthline Media","logo":{"@type":"ImageObject","url":"https://media.post.rvohealth.io/wp-content/uploads/2023/09/Healthline-Black-Logo.png"}},"@type":"MedicalWebPage","headline":"Retrograde Pyelogram","description":"A retrograde pyelogram is a procedure that gives your doctor a better view of your urinary system. Learn about the risks and what you need to do to prepare.","keywords":"retrograde pyelogram","author":{"@type":"Person","name":"Tim Jewell"},"lastReviewed":"2018-01-23T08:00:00Z","url":"https://www.healthline.com/health/retrograde-pyelogram","datePublished":"2018-01-23T08:00:00Z","dateModified":"2018-09-17T05:32:55Z","articleSection":"Uncategorized,Cat 1","reviewedBy":"Suzanne Falck, M.D., FACP","thumbnail":["https://media.post.rvohealth.io/wp-content/uploads/2020/08/4637-Doctor_Explaining_to_patient-732x549-thumbnail-732x549.jpg"]},"hero":{}}},"ampLibs":{},"scrollArticles":[{"title":["Everything You Need to Know About Kidney Stones"],"text":["Kidney stones, or renal calculi, are masses made of crystals. Learn more about causes and symptoms here. 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A native of Long Island, NY, she moved to San Francisco after college, and then took a brief hiatus to travel the world. In 2015, Jacquelyn relocated from sunny California to even sunnier Gainesville, FL, where she owns 7 acres and more than 100 fruit trees. She loves chocolate, pizza, hiking, yoga, soccer, and Brazilian capoeira. Connect with her on LinkedIn.\u003c/p\u003e\n"},"avatar":{"title":"","src":""}}],"reviewedByHeader":"Medically reviewed by"},{"title":["Pyelonephritis"],"text":["Pyelonephritis is a sudden and severe kidney infection. This condition causes the kidneys to swell and can cause permanent damage. Pyelonephritis can…"],"link":"/health/pyelonephritis","imageAlt":"Pyelonephritis","thumbnail":"https://media.post.rvohealth.io/wp-content/uploads/2020/09/6209-senior_female_sitting_bed-732x549-thumbnail-732x549.jpg","medicallyReviewedBy":{"reviewerName":"Suzanne Falck, MD","reviewerImage":{"path":"","width":0,"height":0,"altText":false},"specialties":[]},"isNutrition":false,"authors":[{"id":3171,"name":{"display":"Christine DiMaria","first":"christine","last":"dimaria"},"userLogin":"cdimaria","links":{"website":"","facebook":"","linkedin":"","twitter":"","instagram":"","tiktok":""},"type":{"value":"","label":""},"specialties":[],"bio":{},"avatar":{"title":"","src":""}}],"reviewedByHeader":"Medically reviewed by"},{"title":["Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?"],"text":["Although all three conditions are similar, learn the differences between overactive bladder, urinary incontinence, and UTI, including what causes each."],"link":"/health/overactive-bladder-vs-urinary-incontinence-vs-uti","imageAlt":"Overactive Bladder vs. Urinary Incontinence and UTI: What’s the Difference?","thumbnail":"https://media.post.rvohealth.io/wp-content/uploads/2020/03/Female_Walk_Hallway-732x549-Thumbnail-732x549.jpg","medicallyReviewedBy":{"reviewerName":"Meredith Goodwin, MD, FAAFP","reviewerImage":{"path":"https://media.post.rvohealth.io/wp-content/uploads/2023/05/Meredith-Goodwin-Headshot-500x500-Bio.png","width":200,"height":200,"altText":""},"specialties":[]},"isNutrition":false,"authors":[{"id":1561,"name":{"display":"Heidi Godman","first":"Heidi","last":"Godman"},"userLogin":"hgodman","links":{"website":"","facebook":"","linkedin":"","twitter":"","instagram":"","tiktok":""},"type":{"value":"author","label":"Author"},"specialties":[],"bio":{},"avatar":{"title":"","src":""}}],"reviewedByHeader":"Medically reviewed by"},{"title":["Chronic Urinary Tract Infections (UTIs)"],"text":["Chronic urinary tract infections (UTIs) are infections of the urinary tract that don’t respond to treatment. "],"link":"/health/chronic-urinary-tract-infection","imageAlt":"Chronic Urinary Tract Infections (UTIs)","thumbnail":"https://media.post.rvohealth.io/wp-content/uploads/2024/04/female-holding-abdomen-732-549-feature-thumb.jpg","medicallyReviewedBy":{"reviewerName":"Lauren Castiello, MS, AGNP-C","reviewerImage":{"path":"https://media.post.rvohealth.io/wp-content/uploads/2022/01/Lauren-Castiello-500x500-Bio.png","width":200,"height":200,"altText":""}},"isNutrition":false,"authors":[{"id":183,"name":{"display":"Kristeen Cherney","first":"Kristeen","last":"Cherney, PhD"},"userLogin":"kristeen.writes","links":{"website":"http://kristeencherney.com/","facebook":"","linkedin":"","twitter":"","instagram":"","tiktok":""},"link":"/authors/kristeen-cherney","type":{"value":"author","label":"Author"},"nid":"159202","specialties":[],"guestTitle":"","bio":{"text":"\u003cp\u003eKristeen Cherney, PhD, is a mental disabilities scholar, freelance writer, and author who specializes in topics related to mental health, disabilities, women\u0026#8217;s health, skin health, diabetes, thyroid disease, asthma, and allergies. Her recently finished dissertation explores intersections of disability studies and literacy studies. When she\u0026#8217;s not researching or writing with the help of her office manager pup, Kristeen enjoys getting outdoors as much as possible. Read more about her work at her website http://kristeencherney.com/.\u003c/p\u003e\n"},"avatar":{"title":"","width":200,"height":200,"src":"https://post.healthline.com/wp-content/uploads/2019/03/200x200_Kristeen_Cherney.png"}}],"reviewedByHeader":"Medically reviewed by"},{"title":["Understanding Hydronephrosis in Newborns"],"text":["Hydronephrosis in newborns is a condition that causes enlarged kidneys at birth. It can resolve by itself, but some babies need treatment. "],"link":"/health/hydronephrosis-in-newborns","imageAlt":"Understanding Hydronephrosis in Newborns","thumbnail":"https://media.post.rvohealth.io/wp-content/uploads/2024/08/female-doctor-with-mother-holding-newborn-infant-check-up-appointment-732x549-thumbnail.jpg","medicallyReviewedBy":{"reviewerName":"Karen Gill, M.D.","reviewerImage":{"path":"https://media.post.rvohealth.io/wp-content/uploads/2022/01/Karen-Richardson-Gill-500x500-Bio.png","width":200,"height":200,"altText":""},"specialties":["pediatrics"]},"isNutrition":false,"authors":[{"id":6356,"name":{"display":"Rosalie Rung","first":"Rosalie","last":"Rung"},"userLogin":"rrung","links":{"website":"","facebook":"","linkedin":"","twitter":"","instagram":"","tiktok":""},"type":{"value":"author","label":"Author"},"nid":"","specialties":[],"guestTitle":"","bio":{"text":""},"avatar":{"title":"","src":""}}],"reviewedByHeader":"Medically reviewed by"},{"title":["How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?"],"text":["VUR is graded 1 through 5 based on the severity of the disease. Low grade VUR may go away on its own while high grade VUR may require surgery."],"link":"/health/vesicoureteral-reflux-grading","imageAlt":"How Is Vesicoureteral Reflux (Backward Urine Flow) Graded?","thumbnail":"https://media.post.rvohealth.io/wp-content/uploads/2024/08/father-daughter-lap-medical-check-up-doctor-pediatrician-732x549-thumbnail.jpg","medicallyReviewedBy":{"reviewerName":"Mia Armstrong, MD","reviewerImage":{"path":"https://media.post.rvohealth.io/wp-content/uploads/2022/01/Mia-Armstrong-500x500-Bio.png","width":200,"height":200,"altText":""}},"isNutrition":false,"authors":[{"id":847,"name":{"display":"Daniel Yetman","first":"Daniel","last":"Yetman"},"userLogin":"dtyetman","links":{"website":"http://www.danielyetman.ca","facebook":"","linkedin":"https://www.linkedin.com/in/daniel-yetman-0b55591a","twitter":"","instagram":"https://www.instagram.com/daniel.yetman","tiktok":""},"link":"/authors/daniel-yetman","type":{"value":"author","label":"Author"},"nid":"","specialties":[],"guestTitle":"","bio":{"text":"\u003cp data-pm-slice=\"1 1 []\"\u003eDaniel Yetman is a Canadian writer from Halifax. 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