Ulcerative colitis (large intestine inflammation) Description An inflammatory disease of the colon (large intestine) characterized by ulceration and episodes of bloody di…
Umbilical hernia (belly button hernia) Description A weakening of the abdominal wall in the area of the belly button (umbilicus) that allows abdominal contents…
Unisom overdose (doxylamine overdose) Description Doxylamine is an antihistamine and causes an anti-cholinergic syndrome after an overdose. The overdose can b…
Unstable angina (pre heart attack chest pain) Description Chest pain that is caused by insufficient blood supply through the coronary arteries that feed oxygen and nu…
Upper respiratory tract infection (URI, common cold) Description An infection of the upper airway that usually lasts 2-4 days. Patients often experience low grade fevers, fa…
Ureaplasma urealyticum infection (genital infection) Description A bacterial cause of non-gonococcal urethritis in men. It is unclear whether it causes acute illness in wome…
Urethral stricture Description A urethral stricture is a narrowing of the urethra, which is the tube that carries urine out of the body fro…
Urethritis (infection of urethra) Description Inflammation of the urethra. The urethra is the tube that carries urine from the bladder to the outside of t…
Urinary tract malformation Description There are a many different types of urinary tract malformations. The great majority are congenital, and are …
Urine retention (inability to urinate) Description The inability to empty the bladder. Urinary retention can be caused by an obstruction in the urinary tract o…
Urticaria (hives) Description An itchy rash that is caused by fluid entering the skin after a localized release of histamine. An allergic …
Uterine cancer Description Uterine cancer is the abnormal growth of cells in the uterus. These abnormal cells ultimately grow and produ…
Uterine prolapse (uterine vaginal protrusion) Description The uterus has sunk from its normal location and extends into the vagina. When severe, it can project outsid…
Uterine rupture (uterine tear during childbirth) Description Tearing of the uterus that occurs during labor. If not immediately treated it can result in the death of the…
Uveitis (iritis, eye inflammation) Description The uvea is the portion of the eye that contains the iris, the ciliary body and the choroid. Uveitis or irit…
