If your child is often constipated when drinking milk, you can switch to other brands of milk, take probiotics, and eat more vegetables and fruits to deal with the situation, as follows: 1, switch to other brands of milk, some children are allergic to milk, often because they are prone to allergies to a certain brand of milk protein, you can switch to amino acid milk powder or deeply hydrolyzed protein milk powder, which has a significant effect on constipation 2, take probiotics, because probiotics, such as small Pfeiffer, Mamie’s love, can regulate the disorder of intestinal flora, thus helping to relieve constipation; 3, eat more vegetables, fruits, because some children often drink more milk, but the intake of vegetables, fruits is relatively small, which leads to the lack of sufficient dietary fiber, resulting in fecal masses to stimulate gastrointestinal motility, resulting in constipation. This situation only needs to give children to eat more vegetables, fruits, increase the intake of dietary fiber, which can promote gastrointestinal peristalsis, improve constipation.