The baby does not defecate consider the presence of constipation, you can take lactulose, bifidobacteria or topical corkscrew. Surgery may be needed if necessary. 1. Functional constipation: such as dietary fluid, fiber content is low, can lead to constipation, then need to adjust the diet structure, drink more water, eat more high-fiber foods such as celery, bananas, etc., supplemented by the use of stool-softening drugs, such as lactulose; adjusting the gastrointestinal flora of drugs, such as bifidobacteria, to help relieve. 2. Organic constipation: if the baby has congenital megacolon, intestinal obstruction and other conditions, it can lead to no bowel movement. Need to go to the hospital to improve the relevant examination, symptomatic treatment, if necessary, can take surgical treatment. It is recommended to consult a doctor when your baby does not have bowel movements to avoid adverse consequences. The above drugs should be used under the guidance of a physician, not self-medication.