Under normal circumstances, the normal number of bowel movements is 1~3 times per day, but sometimes the number of bowel movements per day varies, which is affected by living habits, dietary habits and personal constitution. 1. Lifestyle: For people with high activity level, the speed of intestinal peristalsis increases, and the number of bowel movements may be relatively high, and ≥3 times a day is normal. For people with low activity level, intestinal peristalsis is relatively slow, and it may take 1~3 days to have a bowel movement. 2. Dietary habits: for people who often eat fine grains, low dietary fiber diet, the number of stools is relatively small, may be ≤ 1 time / day, while for high dietary fiber diet, greasy diet or semi-liquid diet, as well as often drink alcohol, the number of stools is relatively large, may be ≥ 3 times / day. 3. Special people (individual physical factors): for people with poor absorption function of gastrointestinal tract, such as children, the ability of digestion and absorption is low, so the number of stools can be 3~6 times/day, and the feces contain undigested food residues. For people with poor intestinal motility, such as the elderly, there is a large amount of feces and food residue in the intestines, and due to slow intestinal motility, the water in the intestinal residue is absorbed repeatedly, leading to dryness of the stool, and the number of times of defecation is about 1-3 times/day. Therefore, the number of bowel movements of normal people is 1~3 times per day, but the number of bowel movements varies due to living habits, dietary habits and personal constitution. However, if there is a change in the nature of stools and bowel habits, it is recommended to consult a doctor in time.