Patients with irregular bowel movements are mostly considered to be due to constipation, and the common causes include the following: 1, lifestyle: too little fiber intake, too little eating, and suppression of bowel sensation. 2, exogenous factors: taking certain drugs, such as opioids, anticholinergics, antidepressants, anticonvulsants, etc. 3, endocrine and metabolic factors: such as hypothyroidism, hypercalcemia, etc. 4, neurological disorders: such as 5, psychological factors: such as depression, eating disorders, obesity-related psychological disorders, etc. 6, gastrointestinal diseases: such as pyloric obstruction, intestinal obstruction, and megacolon, etc. 7, rectal and anal canal factors: anal atresia or malformation, anal stenosis, rectal bulge, rectal mucosal prolapse, intussusception, etc. The above-mentioned causes can lead to poor bowel movement, when the symptoms of poor bowel movement, to go to the hospital in a timely manner for systematic examination, according to the different causes, to give the appropriate treatment, so as not to delay the disease.