Peritonitis is mostly caused by inflammation or perforation of the organs in the abdominal cavity, and the treatment is mostly based on surgical treatment. Its diet should pay attention to: 1, abdominal distension, abdominal pain and other symptoms, at this time it is strictly prohibited to drink hot water and other ways to relieve pain, it is not suitable for hot compresses, go to the hospital in time for diagnosis and treatment; 2, peritonitis after surgery when the patient’s gastrointestinal function is restored, the first to give a small amount of light fluids, to be ventilated before eating, and gradually to the semi-fluid, fluids, the normal transition to the diet, you can choose millet gruel or dilute pasta, etc.; 3, in the In daily life, avoid overeating and eating spicy, greasy and other stimulating foods, eat more protein-rich and vitamin-rich foods, such as fresh vegetables, fruits and so on.