Infantile constipation can be treated by adding complementary food, which can make him eat more fruits and vegetables, such as apples, bananas and watermelons. Also eat more Chinese cabbage, celery, spinach, etc. , can be mashed to feed the baby, often massage the abdomen, can promote gastrointestinal peristalsis, effectively relieve constipation. If it is a good student's baby, let him develop the habit of defecating regularly. If the diet is not effective. You can give him some probiotics orally. Probiotics can relieve constipation and diarrhea and regulate the balance of intestinal flora.