The steps to check the tension of the abdominal wall are as follows: 1. Position the patient in a lying position, bend the patient’s hips and knees so that the abdominal muscles can be completely relaxed, and the operator stands on the right side of the patient’s body. 2. Relax the patient’s abdominal muscles and expose the skin of the patient’s abdomen, if the weather is cold, you can warm your hands with warm water to avoid stimulating the patient’s skin and thus causing muscle spasm and contraction. 3. 3, from the patient’s left lower abdomen counterclockwise touch the abdomen to check the tension, if the patient appears the performance of acute peritonitis, the whole abdomen will appear muscle tension and even pressure pain and rebound pain, serious will also appear the signs of lamellar abdomen. If there is local inflammation such as acute appendicitis, there may be tension, tenderness, and rebound pain in the abdominal muscles of the right lower abdomen alone.