If the pain is accompanied by abnormal urination and abnormal leucorrhea, in addition to considering whether there are lesions in the gastrointestinal tract colon, we should also consider the reproductive system and the urinary system. 2. Due to functional lesions, such as irritable bowel syndrome, defecation with abdominal pain can also occur when eating irritating factors such as chili peppers, too cold food or excessive emotional stress. Therefore, you should go to the hospital for colonoscopy and, if necessary, genitourinary system and gynecological examination to further clarify whether the combination of organic lesions of the digestive system and other systems, if the corresponding examination are normal, then the abdominal pain of defecation caused by functional lesions.