This document summarizes information about acute appendicitis, including: - It is a nonspecific bacterial inflammatory disease that most commonly occurs between ages 20-40. - It is classified into different types depending on severity from acute to gangrenous. - Clinical examinations are used to diagnose including blood tests, urine tests, and imaging like ultrasound or x-rays. - Symptoms include abdominal pain, nausea, vomiting and more which are present in varying percentages of patients. - Treatment involves surgery to remove the appendix, which can be done openly or laparoscopically.