Belly beating has the following causes: 1, poor gastrointestinal motility, long-term constipation, etc. will lead to belly beating. 2, nerve spasms, while there is a certain amount of intestinal spasm leading to belly beating, which is a physiological lesion, nothing wrong. 3, the abdominal aorta beating. The abdominal aorta is a continuation of the body’s aorta in the abdomen, is the largest artery in the body, the main role is responsible for the blood supply of the abdominal wall and internal organs of the abdominal cavity, if lying belly throbbing will be more obvious. 4, the flesh on the stomach is throbbing, this is because the nerve cells in the body will often send nerve impulses to the muscles, so it will lead to belly throbbing. 5, the body is stimulated by external stimuli, which can lead to stomach wall muscles or 6, physical fatigue will also lead to a slight muscle spasm, which causes the belly to jump.