Appendicitis is a condition in which the appendix, a small organ attached to the large intestine, becomes inflamed. It is a common surgical emergency, and early diagnosis and treatment are essential to prevent serious complications.
The most common symptom of appendicitis is pain in the lower right abdomen. This pain may start as a dull ache and gradually become more severe. Other symptoms of appendicitis may include nausea, vomiting, loss of appetite, constipation or diarrhea, and fever.