Changing formula for constipation in babies is not a cure, and the cause can be identified and treated depending on the age of the baby. Formula milk may cause constipation in babies, but changing milk powder can’t relieve it in most cases. The proportion of carbohydrates in formula milk is low, which is easy to cause constipation, and edible sugar can be added in moderation to increase intestinal peristalsis. Repeated constipation, severe constipation, still need to identify the cause before treatment. Constipation caused by organic lesions, such as congenital megacolon, can be used to expand the anus, surgical treatment, etc.; constipation caused by hypothyroidism, need to be given levothyroxine sodium tablets treatment. Functional constipation can be treated with oral probiotics, such as Bifidobacterium bifidum, etc. Older babies can develop the habit of having bowel movements on time. Has added complementary foods for young children, can increase fiber foods, drink more warm water, can promote the discharge of stool. Baby constipation is recommended to go to the hospital, under the guidance of the doctor to treat.