The child does not poop for four or five days, may be related to physiological factors, may also be due to constipation, congenital megacolon and other causes. 1. Physiological factors: for example, the child does not eat enough, coupled with the child’s ability to absorb better, resulting in less production of feces in the intestinal tract, the phenomenon of four or five days without pooping may occur. If it is not accompanied by bloating symptoms, and the mental state is good, it is a normal phenomenon. 2. Constipation: Some children may not have bowel movements for four or five days due to too much partiality and picky eating, too little intake of vegetables, fruits and foods rich in fiber, coupled with too little water and exercise, which may lead to constipation and may be accompanied by bloating and poor diet. 3. Congenital megacolon: the disease is usually due to abnormal development of intestinal neurons, resulting in the lack of distal colorectal ganglion cells, can not be normal peristalsis, resulting in intestinal contents can not be normally discharged, may cause four or five days without pooping symptoms, may also be accompanied by developmental delay, abdominal bloating and other manifestations. The child four or five days without poop, there may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.