What can cause kidney scarring?
Anthony L. Komaroff, MD
Internal Medicine
Scarring occurs during the healing process after damage to living tissue and cells. Scars are an imperfect process for damaged tissues to heal. Scarring usually does not cause pain. It can on rare occasions lead to impaired function of an organ if the scarring is extensive.

When this occurs in the kidney, it is usually the result of an infection within the kidney tissue. Very often, this occurs from a urinary tract infection. There would rarely be any related pain or other symptoms.

Scarring may be seen on imaging of the kidney (ultrasound, CAT scan, or MRI) without the person ever knowing they have scarring.

Another much less common cause of kidney scarring is a blood clot that prevents oxygen getting to a part of the kidney. This leads to damage of the tissue and the formation of scars.

Continue Learning about Kidney Disease and Urology

Kidney Disease and Urology

Kidney Disease and Urology

The kidneys are amazing organs. One of the kidney’s major functions is to filter and remove waste products and excess fluids from your body. Each and every day, your kidneys filter over 200 quarts of fluid to produce about 2 quart...

s of urine that is stored in the bladder, and ultimately removed through a process called urination. Your kidneys also play an important role in removing drugs, regulating blood pressure, controlling the production of red bloods cells and helping promote strong, healthy bones by producing an active form of vitamin D.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.