Hemorrhoids and colon cancer can both cause symptoms of rectal bleeding, but diagnosis and treatment are different. It's ...

Barium enema: A barium preparation is inserted through a rectal tube, coating the entire colon. X-rays are taken of the colon. Flexible Sigmoidoscopy If you have lower abdominal symptoms, you may need ...

Stress also affects digestion indirectly through behavior. People under chronic stress may skip meals, overeat, consume more ...

Canker sores are painful ulcers that occur in the mouth, including on gums. Here's a look at how to deal with them.