Compulsive lying on the back is a position in which the patient lies on his back with his legs flexed to relieve tension on the abdominal muscles in order to relieve the pain of the disease. It is commonly seen in acute peritonitis. Secondary peritonitis Acute perforation and rupture of intra-abdominal organs: the most common cause of acute secondary peritonitis. Perforation of cavernous organs often occurs suddenly due to progression of ulcerative or gangrenous lesions, e.g., acute appendicitis, peptic ulcer, acute cholecystitis, typhoid ulcer, gastric or colon cancer, ulcerative colitis, ulcerative intestinal tuberculosis, amebic bowel with diverticulitis. Comprehensive history taking and objective analysis is the key to abdominal emergencies. The clinician must personally take a patient and careful history so that the history obtained is both focused and authentic, so that it can correctly reflect the objective manifestations of forced supine position, reduce the blindness in treatment, and develop a reasonable treatment plan. Do a thorough clinical examination, first of all, we should pay attention to observe the general state and various expressions of patients in forced supine position, fully apply visual, tactile, percussion and auditory examination methods to carefully and meticulously examine the patient’s abdomen to determine the existence of acute abdominal disease in the form of L. If the diagnosis is difficult to be sure for a while, the necessary prescription should be given according to the specific condition at that time, and the diagnosis should be confirmed early in dynamic observation. Simple and easy diagnostic methods, clinic acute amine disease, first of all, should be detailed medical history and strict physical examination as the main basis, with laboratory, B ultrasound, x-ray, electrocardiography, diagnostic laparotomy (or culprit lavage) and other routine tests, and analysis, synthesis, reasoning, generalization of these data, you can come up with the diagnosis of acute abdominal disease, and special tests: such as CT, selective arteriography, isotope scan, laparoscopy Special tests such as CT, selective arteriography, isotope scan, laparoscopy, etc. should only be used when both conditions are available and necessary. The above diagnostic principles of forced supine position, we need to actively grasp, of course, after we grasp the diagnostic principles of forced supine position, but also must choose a professional hospital, only to professional hospital treatment can achieve better results, restore the safety and health of everyone.