{"id":12621,"date":"2026-10-12T01:52:08","date_gmt":"2026-10-12T01:52:08","guid":{"rendered":"https:\/\/nygse.com\/?p=12621"},"modified":"2026-10-17T23:13:16","modified_gmt":"2026-10-17T23:13:16","slug":"puede-la-endometriosis-afectar-los-rinones","status":"publish","type":"post","link":"https:\/\/nygse.com\/es\/can-endometriosis-affect-kidneys\/","title":{"rendered":"\u00bfPuede la endometriosis afectar los ri\u00f1ones? Lo que las pacientes deben saber"},"content":{"rendered":"\t\t
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Most people associate endometriosis<\/a> with painful periods, pelvic pain, or difficulty becoming pregnant. The kidneys rarely enter the conversation.<\/p>

But can endometriosis affect your kidneys?<\/p>

Yes. Although uncommon, endometriosis can interfere with the urinary system and sometimes threaten kidney function.<\/strong> What makes this complication concerning is that damage may develop without obvious symptoms<\/em>. [1][3]<\/sup><\/a><\/p>

To understand why, it helps to know how the kidneys normally work and what happens when urine cannot drain properly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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The kidneys produce urine, which travels through the ureters to the bladder for storage before urination.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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How Your Kidneys and Ureters Work Together<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Your kidneys filter blood, remove waste products, and produce urine. Each kidney connects to the bladder through a narrow, muscular tube called a ureter.<\/em><\/p>

Think of the ureters as drainage pipes. As long as urine flows freely, the kidneys can continue doing their work.<\/p>

But what happens when one of those pipes becomes narrowed?<\/p>

Urine may accumulate above the obstruction, increasing pressure inside the kidney. If that pressure persists, it can gradually interfere with normal kidney function.<\/strong> [1][4]<\/sup><\/a><\/p>

The problem may begin in the pelvis, even though the consequences develop in the kidney.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Can Endometriosis Cause Kidney Damage?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Yes, although this is an uncommon complication.<\/p>

Endometriosis occurs when tissue similar to the lining of the uterus grows outside the uterus. These lesions can cause inflammation and contribute to scar tissue formation.<\/p>

When endometriosis develops near a ureter, the surrounding scar tissue may narrow or compress it. This can make it difficult for urine to pass from the kidney into the bladder.<\/p>

The kidney’s urine-collecting system may then become enlarged, a condition called hydronephrosis<\/em>. If the obstruction continues, the resulting pressure can damage kidney tissue and eventually reduce its function.<\/strong> [1][4]<\/sup><\/a><\/p>

Importantly, endometriosis does not need to grow directly on the kidney to cause this problem<\/strong>. A small area of disease affecting the ureter may have consequences farther upstream.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Medical illustration of ureteral endometriosis, showing how endometriosis lesion can obstruct the ureter and cause hydronephrosis.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Endometriosis and Kidney Pain<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Kidney-related pain is often felt in the flank<\/em>, the area between the lower ribs and the hip on either side of the back. Sometimes, discomfort extends toward the abdomen or groin.<\/p>

However, pain in this region is not specific to endometriosis. Kidney stones, urinary infections, and musculoskeletal problems can produce similar symptoms.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Does Kidney Pain Get Worse During Your Period?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Sometimes, symptoms associated with urinary tract endometriosis may become more noticeable around menstruation.<\/p>

However, pain that follows your menstrual cycle does not necessarily mean the ureter is affected<\/strong>. Likewise, pain occurring throughout the month does not rule out endometriosis. [4]<\/sup><\/a><\/p>

Persistent or unexplained flank pain deserves medical evaluation, particularly in patients with known deep endometriosis.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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The Hidden Risk of Kidney Damage Without Pain<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Here is something that may seem surprising: a ureter can become significantly obstructed without causing severe pain.<\/strong> [1][3]<\/sup><\/a><\/p>

Why?<\/p>

If one kidney is affected, the other may continue filtering blood and producing urine. You may still urinate normally even when drainage from one kidney is impaired.<\/p>

Routine blood tests may also remain within the normal range because they reflect the combined function of both kidneys.<\/p>

This ability to compensate is helpful, but it can also make a problem harder to recognize.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Can One Kidney Lose Function Without Symptoms?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Yes. In some cases, kidney function declines without noticeable urinary symptoms.<\/p>

A normal creatinine result does not necessarily prove that both kidneys are functioning equally well.<\/strong> One kidney may be compensating for reduced function in the other. [3][4]<\/sup><\/a><\/p>

This is why suspected ureteral involvement may require imaging or specialized testing, even when symptoms are mild or absent.<\/p>

The goal is not to assume that every patient with endometriosis has kidney disease. It is to recognize when the location of endometriosis or other findings makes further evaluation appropriate.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Does Endometriosis Grow Directly on the Kidneys?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Direct endometriosis involving kidney tissue is exceptionally rare<\/em>.<\/p>

Urinary tract endometriosis more commonly affects the bladder or ureters. When lesions or surrounding fibrosis narrow a ureter, urine drainage may become impaired. [1][3]<\/sup><\/a><\/p>

In other words, the disease may be located in the pelvis while the kidney experiences the consequences.<\/strong><\/p>

This distinction matters because a patient may have no lesions on the kidney itself but still develop kidney-related complications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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How Doctors Evaluate Kidney Function<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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When urinary tract involvement is suspected, doctors may recommend a renal ultrasound to look for changes in the kidney’s urine-collecting system.<\/p>

Blood tests, including creatinine<\/em>, help assess overall kidney function. Pelvic ultrasound or MRI may also identify deep endometriosis near the ureters. [2][3]<\/sup><\/a><\/p>

In selected cases, a nuclear medicine renal scan<\/em> can measure how much each kidney contributes to overall function. [3]<\/sup><\/a><\/p>

No single test provides every answer.<\/strong> The appropriate evaluation depends on symptoms, medical history, examination findings, and previous imaging.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Protecting Your Kidneys When You Have Endometriosis<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Not everyone with endometriosis needs routine kidney imaging. Urinary tract complications are uncommon, and testing should be guided by individual risk and clinical findings.<\/p>

However, unexplained flank pain, known deep endometriosis near the ureters, or abnormal urinary tract imaging may warrant further assessment.<\/strong> [1][3]<\/sup><\/a><\/p>

Severe flank pain accompanied by fever or chills requires urgent medical attention, particularly if urinary obstruction is suspected. A substantial reduction in urine output also needs prompt evaluation.<\/p>

At New York Gynecology Surgery & Endometriosis<\/a>, evaluating complex endometriosis means looking beyond pelvic pain and considering how the disease may affect surrounding organs.<\/p>

The absence of pain does not always mean the absence of disease.<\/strong> Recognizing possible urinary tract involvement early can help protect kidney function and prevent avoidable complications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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