Forced supine position is usually due to the patient lying on his or her back with legs flexed to reduce tension in the abdominal muscles in order to relieve the pain of the disease. It is commonly associated with peritonitis. The principle of treatment is to actively eliminate the cause of peritonitis and to thoroughly cleanse and aspirate the pus and exudate present in the abdominal cavity, or to promote the absorption and confinement of the exudate as soon as possible. In general, what are the methods of prevention and treatment of acute peritonitis? (a) non-surgical treatment methods 1, position: in the absence of shock, the patient should take a semi-recumbent position, often move the two lower limbs, change the site of pressure to prevent the occurrence of venous thrombosis and bedsores. 2, fasting: patients with gastrointestinal perforation must be absolutely fasted to reduce the continued leakage of gastrointestinal contents. 3, gastrointestinal decompression: can reduce the gastrointestinal tract expansion, improve the blood flow of the gastrointestinal wall, is an indispensable treatment for patients with peritonitis. 4.Intravenous infusion: Patients with peritonitis fasting must correct water-electrolysis and acid-base imbalance by infusion. 5, supplemental heat and nutrition: acute peritonitis requires a large amount of heat and nutrition to make up for its needs. 6, the application of antimicrobial agents: early that should be selected a large number of broad-spectrum antibiotics, and then adjusted according to the results of bacterial culture, the route of administration to intravenous drip is better,. 7, analgesia: for the diagnosis has been clear, the treatment method has been decided for the patient, in order to reduce the patient’s pain appropriate application of sedative analgesics is necessary. (B) surgical treatment 1, lesion treatment: removal of the cause of peritonitis is the main purpose of surgical treatment. 2.Cleaning the abdominal cavity: After eliminating the cause, the pus in the abdominal cavity should be aspirated as much as possible, and the food and residue, feces and foreign bodies in the abdominal cavity should be removed. 3, drainage: so that the remaining inflammation can be controlled, limited and disappeared.