Constipation can cause abdominal pain. Clinically, constipation is often caused by slowed gastrointestinal motility or poor digestive function, resulting in poor bowel movements. In Chinese medicine, it is said that if you do not pass the stool, it is painful. The accumulation of large amounts of fecal residue and food in the intestine due to poor stool elimination causes abdominal pain and leads to abdominal distension, nausea, vomiting, and even digestive obstruction, which is the characteristic of abdominal pain. Generally to solve the abdominal pain, you need to pay attention to the diet, while giving medication symptomatic treatment, such as lactulose oral solution, bifidobacterium capsules or give open-cell enemas to solve constipation. If constipation is not relieved repeatedly, it is also necessary to improve colonoscopy to further exclude other possible causes, such as intestinal polyps, intestinal tumor occupancy and other functional gastrointestinal diseases.