U
| Term | Definition |
|---|---|
| ulcerative colitis |
a disease that causes ulcers in the lining of the rectum and colon; one of a group of diseases called inflammatory bowel disease |
| undescended testicles (cryptorchidism) |
when one or both testicles don |
| upper GI endoscopy |
examination of the esophagus, stomach, and duodenum with an endoscope |
