The normal number of bowel movements is 1-2 times a day, but due to individual differences, there are some people who have bowel movements once every 1-2 days. There are many reasons affecting the number of bowel movements, the most important one is dietary factors, due to eating too little, eating indigestible food and eating food with less residue, the food formed in the intestinal tract less feces or the food can not stimulate peristalsis of the intestine, resulting in fewer bowel movements. At the same time, age is also a reason that affects the number of bowel movements, due to the elderly, children, their intestinal function is relatively weakened, slow peristalsis, which can also lead to a reduction in the number of bowel movements. In addition, some mental factors, such as anxiety, depression and nervousness, can also lead to changes in the number of bowel movements. Due to the influence of age, surrounding environment, dietary habits and mental factors, the number of bowel movements varies for each person. As long as there are no symptoms of discomfort during bowel movements and no change in the nature of stools, it is normal to have a certain increase or decrease in the number of bowel movements.