Pain in the stomach at one time and not at the other. Firstly, it is caused by intestinal spasm, which is caused by the different speed of intestinal peristalsis. When the intestinal peristalsis increases, abdominal pain will appear, and when the intestinal peristalsis is normal, the abdominal pain will disappear. Secondly, it may be caused by a cold in the abdomen, because a cold in the abdomen can lead to different speeds of intestinal peristalsis. Again, it may be caused by eating irritating food or excessively greasy food, which are normal phenomena. In addition, it may also be caused by intestinal adhesions or tumors in the abdominal cavity, such as cecum or colon cancer, which may increase the peristalsis of the small intestine. In this case, we need to go to the hospital for examination and perform abdominal CT or plain film and colonoscopy to further clarify. If the diagnosis of colon tumor is clear, radical tumor surgery is needed.