If a 3-year-old baby is often constipated, he or she needs to adjust the diet: 1, the intake of snacks needs to be reduced, snacks are mostly spicy and stimulating food, which can significantly aggravate the problem of constipation. 2, the baby especially does not like to eat vegetables or fruits, parents need to pay attention to the cooking method, try to choose the cooking method according to the taste of the baby, it is recommended that the baby eat more vegetables and fruits, the fiber content is as much as possible to promote the discharge of stool. 3, the baby needs to drink more water or light salt water to promote the discharge of stool. 4, for the baby constipation, you can also take appropriate probiotics to regulate, you can also use the massage or massage approach.