Sudden pain around the belly button relieved after a bowel movement, its common causes are gastrointestinal dysfunction, acute enteritis, intestinal obstruction. 1. Gastrointestinal dysfunction: due to cold or improper diet, stimulate intestinal peristalsis to increase speed, resulting in transient pain, stool can relieve pain. 2. Acute enteritis: due to inflammation stimulation of the intestinal tract, causing pain, there will be intestinal spasm, resulting in the sensation of defecation, after defecation, the pain may be relieved. 3. Intestinal obstruction: after some causes of obstruction, resulting in stomach pain, after defecation the intestinal tract is open, abdominal pain will be better. Sudden pain around the belly button relieved after a bowel movement, there may be other reasons, it is recommended to go to the hospital in time, under the guidance of the doctor for standardized treatment.