Seven-month-old babies three or four days without poop may be a normal phenomenon, may also be caused by functional constipation, can be treated by general measures, oral medication. Seven months baby three or four days without poop, but good mental state, normal appetite, sleep, wake up lively and active, no symptoms of bloating, may be a normal phenomenon, there is no need for special treatment, pay attention to observation can be. If the baby does not poop for three or four days at the same time, manifested by loss of appetite, love hiccups, sleep unsettled, often tossing and turning, accompanied by abdominal distension symptoms, considering the existence of functional constipation. Parents can give the baby to drink some warm boiled water to increase the water in the intestinal tract, and then gently rub the abdomen in a clockwise direction for 10-15 minutes to accelerate intestinal peristalsis, which can promote the discharge of stools. If the baby is not poop and crying, parents can give the baby to use drugs to promote defecation, such as oral lactulose laxative, as well as the anus squeezed into the appropriate amount of corkscrew, etc., can quickly relieve the symptoms of constipation in babies. Suggested that parents, usually in the baby’s diet, can properly increase the intake of crude fiber foods, such as cabbage, celery, dragon fruit, etc., to drink a small number of times some water, but also let the baby more exercise, such as crawling, can effectively prevent the emergence of functional constipation. It is recommended that the seven-month-old baby three or four days without poop timely medical attention, active treatment. The above drugs should be used under the guidance of a doctor.