Pelvic Lipomatosis: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Pelvic Lipomatosis?
Pelvic lipomatosis is usually managed by a urologist, a specialist in the urinary system, rather than an OB/GYN. Women often start with an OB/GYN or primary care doctor, who can order imaging and make a referral. Because it is rare, care often involves a team that may include a nephrologist.
What it is
Pelvic lipomatosis is a rare buildup of extra fat in the pelvis, the space between the hip bones. This fat presses on organs such as the bladder, which stores urine, and the rectum, the lower part of the bowel, causing problems with urination and bowel movements.
Symptoms
Some people have no symptoms; the condition may be found by accident during testing for something else. When symptoms appear, they often involve the urinary tract: needing to urinate often, a weak urine stream, and feeling like the bladder does not empty fully. Some people develop hydronephrosis, or kidney swelling, when urine backs up.
Causes and who gets it
Doctors do not know exactly what causes pelvic lipomatosis. It is not related to being overweight and does not usually run in families. It is much more common in men and is usually found in adults between 20 and 60.
How doctors diagnose it
No single test confirms pelvic lipomatosis; doctors use exams and imaging. A CT scan can show the extra fat and how it presses on nearby organs. Cystoscopy, using a thin camera tube through the urethra, can look inside the bladder.
Treatment
Treatment depends on symptoms and how much the bladder and kidneys are affected; mild cases may need only regular checkups and imaging. When the fat blocks urine flow and harms the kidneys, surgery may be considered. Severe cases may need urinary diversion, which reroutes urine through a new opening in the belly.
When to see a doctor
Anyone with ongoing trouble urinating, lower belly pain, blood in the urine, or leg swelling should see a doctor. These symptoms usually have other causes but deserve a checkup because early treatment protects the kidneys. Seek care right away if you cannot urinate at all, have fever with urinary symptoms, or have severe pain.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee, while a concierge doctor usually charges more and often works alongside insurance. Either can order imaging and blood tests and monitor blood pressure and kidney health, referring to a urologist or nephrologist when needed.
Common questions
Is pelvic lipomatosis cancer?
No. The extra tissue is benign fat, which means it is not cancer and does not spread. However, it can press on organs and cause damage, so it still needs medical attention.
Can losing weight help pelvic lipomatosis?
The condition is not caused by body weight, so dieting does not remove the fat that builds up in the pelvis. Staying at a healthy weight is still good for overall health, but it is not a treatment for this condition.
Is pelvic lipomatosis curable?
There is no known cure, and results vary from person to person. Many people with mild symptoms do well with monitoring, while others need medicines or surgery to protect the kidneys.
Can women get pelvic lipomatosis?
Yes, but it is much less common in women than in men. Because it is rare in women, doctors may first look for other causes of pelvic symptoms.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
