Patients present with abdominal pressure pain, rebound pain, and muscle tension, which are clinical symptoms of acute peritonitis. This often indicates that the patient has a more serious infection in the abdominal cavity, and the source of infection in the abdominal cavity stimulates the wall peritoneum, which can cause strong contraction of the abdominal muscle, resulting in localized pressure pain, rebound pain, and muscle tension. At this time, patients need to improve the CT or ultrasound examination as soon as possible, to clarify the specific location of the primary infection foci, as soon as possible to perform surgical treatment. The common acute abdominal conditions include acute suppurative appendicitis, perforated digestive tract, acute gangrenous cholecystitis, and acute obstructive suppurative cholangitis. The primary lesion is removed and the abdominal infection is cleared by aggressive surgical treatment. Postoperatively, abdominal drains are placed and anti-infection treatment is intensified. Most patients can achieve better treatment results.