The appendix is an intraperitoneal organ located in the right lower abdomen, which serves as a lymphatic organ with a certain immune function in infancy and early childhood, and its immune function gradually disappears with age. The appendix is located between the cecum and the ileum, and is a lymphatic organ, rich in lymphoid tissue, which has a certain immune effect on the body. Generally, the appendix is rich in lymphatic tissue during childhood and youth, reaching a peak around the age of 20, with a decrease in the number of lymphs at the age of 30. If there is a blockage of the appendiceal lumen or bacterial infection, there will be inflammatory changes in the appendix, clinically known as appendicitis, which is mainly characterized by pain in the right lower abdomen and is often surgically removed. After surgical removal of the human body is not much effect, in the postoperative period, we should pay attention to early out of bed activities, maintain adequate sleep, avoid strenuous exercise.