
Appendicitis is a common reason for belly pain. It happens when the appendix becomes infected and inflamed.
Your appendix is a small, finger-shaped sac that is attached to your large intestine. Experts do not know what the appendix does in the body. Most of the time it does not cause problems.
| By | Healthwise Staff |
| Primary Medical Reviewer | Anne C. Poinier, MD - Internal Medicine |
| Specialist Medical Reviewer | E. Gregory Thompson, MD - Internal Medicine |
| Last Revised | April 5, 2011 |