Patients with appendicitis are usually in pain for about a week, as surgery should be chosen promptly after the diagnosis of appendicitis has been made. Postoperatively, the patient will show incisional pain, open surgery or abdominal infection leakage is more obvious, there will also be peritoneal irritation. After the systematic anti-infection treatment, the pain symptoms can be gradually reduced, improved and disappeared. So the basic postoperative pain time is about a week, appendicitis early diagnosis should be timely choice of surgical treatment. Because the appendix is a blind end, serious infection can easily lead to necrosis and perforation of the appendix wall, and complicate diffuse peritonitis. In addition, the inflammation of the bacterial thrombus with the venous blood back to the portal vein into the liver, will form portal phlebitis and liver abscess, is also appendicitis the most serious sentence complication, the patient will also have obvious pain in the liver area, so should be timely treatment of the operation as well as postoperative anti-infection.