The large intestine—which includes the cecum, colon, rectum, and anus—is a key part of the digestive system. It's a long, thin organ at the end of your digestive tract where your body produces and ...

The intestines work by absorbing nutrients and vitamins. They are part of the gastrointestinal (GI) tract. Together, the small and large intestines run from the end of the stomach to the anus. In this ...

Ulcerative colitis is a chronic, or long lasting, disease that causes inflammation—irritation or swelling—and sores called ulcers on the inner lining of the large intestine. Ulcerative colitis is a ...