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Describes symptoms, causes, and treatment of primary hyperparathyroidism where one or more enlarged parathyroid gland secretes too much parathyroid hormone.

Monitor and control your solitary kidney function with urine and blood tests, imaging, blood pressure control, diet, and injury prevention.

Vesicoureteral reflux (VUR) is a condition in which urine flows backward from the bladder to one or both ureters and sometimes to the kidneys.

Simple kidney cysts are fluid-filled sacs that can form in one or both of your kidneys. Simple kidney cysts are usually harmless and don’t cause symptoms.

Learn about Peyronie’s disease, the causes, how it develops, the risk factors, diagnosis, and treatment options, and clinical trials.

Learn about the causes, symptoms, and diagnosis of appendicitis, a digestive system infection treated with surgery or antibiotics.

A fact sheet that describes breast reconstruction after mastectomy, including surgical options, follow-up care, and breast cancer screening after reconstruction.

A fact sheet that describes mastectomy and salpingo-oophorectomy, two surgeries that may be used to reduce breast cancer risk in women at very high risk, and nonsurgical options.