The five-year-old boy has been constipated only once every seven or eight days for two years. It is recommended to increase the intake of dietary fiber, increase activity, and drink more water. If the constipation is caused by congenital megacolon, congenital hypothyroidism and other diseases, it is recommended to go to the hospital for timely treatment. The phenomenon of constipation is that it takes seven or eight days to have a bowel movement, which may be related to dietary and lifestyle factors. It is recommended to increase the intake of dietary fiber, increase activity, drink more water, and have regular bowel movements every day, or sit on the pot regularly every day if there is no bowel movement, and develop the habit of regular bowel movements. If it is caused by the following diseases, it is recommended that the patient go to the hospital in time: 1. Congenital megacolon: Usually there can be persistent constipation, abnormal laborious defecation, and it is particularly difficult and long-lasting to pass stools. At present, congenital megacolon is mainly treated by surgery, and paraffin oil can be used to help lubricate and pass stools. 2. Congenital hypothyroidism: It can be manifested as chills, low sweat, poor memory, abdominal distension, constipation and other symptoms. Oral levothyroxine replacement therapy can be taken, and usually requires lifelong replacement. Five-year-old boys who have bowel movements only once every seven or eight days may also be caused by other reasons, and it is recommended to consult a doctor in time to clarify the cause. If medication is needed, it should be used under a doctor’s supervision.