Constipation may be irritable bowel syndrome intestinal spasms appear abdomen hidden pain, may also be intestinal obstruction, intestinal polyps and other intestinal contents caused by intestinal dilatation of hidden pain, female constipation at the same time have dysmenorrhea may also appear the phenomenon. 1. Irritable bowel syndrome, gastrointestinal dysfunction, emotional tension and other easy to cause slow intestinal peristalsis, intestinal smooth muscle spasms, there will be constipation and abdominal pain. May also be intestinal obstruction caused by intestinal contents of the discharge is not smooth, constipation, while the accumulation of feces and other intestinal dilatation, there will also be hidden pain. 2. intestinal polyps, polyps protruding into the intestinal lumen, resulting in food residue discharge difficulties will appear constipation, a long time accumulation of gas in the body, filled with intestinal tract, there will be hidden pain in the abdomen. If a woman has menstrual cramps during constipation, she may also experience hidden pain in the abdomen. The phenomenon may also be caused by other reasons, which should be promptly identified and treated under the guidance of a doctor.