40 days baby three days without stool, according to the situation to give the appropriate treatment, some children do not need to deal with, some children may need to give massage or medication, etc., as follows: 1, no need to deal with: if breastfeeding, good mental state, eat, sleep, play normal, consider the child gastrointestinal tract digestive function than when just born perfect, digestion of breast milk, absorption is better. The production of food residues is less, resulting in slow intestinal peristalsis, the phenomenon of saving belly, even if 3-5 days without defecation, or even 5-7 days without defecation, there is no painful performance. 2, give massage or medication: If the baby drinking milk powder has not defecated for three days, consider the existence of constipation, parents can press the child’s stomach in a clockwise direction to enhance the peristaltic function of the intestines, to promote the discharge of stool, but also under the guidance of doctors to take intestinal probiotics to regulate the intestinal environment, to promote the intestinal The probiotics can also be taken under the guidance of a doctor to regulate the intestinal environment and promote the discharge of food residues in the intestines to improve the symptoms of no stool for three days.