Deep Disease
Can endometriosis block a ureter without pain?
The short answer
Yes, endometriosis can compress or narrow a ureter with little to no pelvic pain, especially when scarring gradually narrows it over time. This can silently back urine up toward the kidney, causing swelling and risking loss of kidney function.
Yes. Endometriosis can involve or compress a ureter with little to no pelvic pain, especially when scarring, or fibrosis, gradually narrows the ureter over time. In those cases, the main concern is what it can silently do rather than how it feels: cause urine to back up toward the kidney (hydronephrosis), risking loss of kidney function.
Some people do have warning signs (flank/back pain, recurrent UTI-like symptoms, urinary urgency/frequency, or blood in the urine), but others don’t notice anything until imaging shows kidney swelling or a change in urinary tract drainage. Because symptoms can be unreliable, we take urinary tract involvement seriously when your story, exam, or imaging raises the possibility.
If you’re worried about ureter involvement, our team can help you sort out whether endometriosis is likely, what other conditions could mimic it, and which imaging or evaluation steps are most informative. If obstruction is confirmed, treatment often requires a coordinated plan to protect the kidney and address the root cause. This may include meticulous excision around the ureter by an experienced surgical team.
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Silent Ureter Blockage? Get Checked Now
Endometriosis can block your ureter with little or no pain, risking kidney health. Our specialists can diagnose and manage deep disease to protect your urinary system.
Questions people ask next
All deep disease questionsCan endometriosis cause hydronephrosis?
Yes, endometriosis can cause hydronephrosis by narrowing or compressing the ureter, the tube that drains urine from the kidney to the bladder, causing urine to back up in the kidney. This may happen without obvious urinary symptoms and can threaten kidney function over time.
Can endometriosis cause kidney problems?
Yes, endometriosis can indirectly affect the kidneys by narrowing or blocking the ureters, the tubes that drain urine to the bladder. Urine can then back up into a kidney and threaten kidney function over time, even with minimal urinary symptoms.
What symptoms suggest ureter endometriosis?
Ureter endometriosis can cause flank or back pain, sometimes worse around your period, deep pelvic pain, and urinary symptoms that don’t match urine culture results. It may also narrow the ureter and stress the kidney with little to no urinary symptoms at first.
Can you have endometriosis without pelvic pain?
Yes, endometriosis can be present even without pelvic pain, and symptom severity doesn’t reliably reflect the extent of disease. It may show up as infertility, abnormal bleeding, pain with sex, bowel or bladder symptoms, or persistent bloating.
Further reading
Bladder, Ureter, and Urinary Symptoms You Didn’t Expect
Discover how urinary tract endometriosis affects symptoms like painful urination, and learn about evaluation and treatment. Explore expert insights!
Deep Infiltrating Endometriosis: Current and Future Treatments
Deep infiltrating endometriosis: symptoms, causes, diagnosis and treatment. Medical therapy, ICG-guided surgery, stenting, pathology, and future outlook.
Bladder Endometriosis: Symptoms, Diagnosis, and Treatment Options
Learn about bladder endometriosis, its symptoms, diagnosis, and treatment options. Understand the complexities to find effective pain management solutions.
