If bacteria invade the lumen of the appendix, it will hinder the arterial reflux and cause appendix ischemia and infarction. According to its clinical process and anatomical structure, it can be generally divided into four types: acute simple appendicitis, acute suppurative appendicitis, gangrenous appendicitis and perforated appendicitis, and periappendiceal abscess. Appendicitis is a common disease, and the typical abdominal pain mainly starts from the upper abdomen and then transfers to the navel, which is limited to the right lower abdomen.
Surgical resection is recommended after appendicitis, and conservative treatment is recommended if it is an abscess around the appendix.