Urology is a branch of medicine that focuses on the diagnosis and treatment of disorders and diseases of the male and female urinary tract system, as well as the male reproductive organs. Urologists are medical specialists who are trained to manage conditions such as urinary tract infections, kidney stones, urinary incontinence, bladder cancer, prostate enlargement (benign prostatic hyperplasia), erectile dysfunction, infertility, and cancers of the kidneys, bladder, prostate, and testicles.