1. Local stimulation of the rectum or anus. Dip your fingers in soapy water and massage your baby's anus. This method can effectively stimulate the baby's anus, relax the anal sphincter, and facilitate defecation.

2. Perform abdominal massage. The massage method is to place your palms or four fingers together on the baby's belly button and massage clockwise for a few minutes to induce intestinal peristalsis and accelerate the discharge of stool.

4. If breastfeeding, it may be caused by insufficient breast milk, which is often accompanied by symptoms such as low weight gain and crying after eating. For this kind of constipation, as long as the amount of breastfeeding is increased, the symptoms of constipation will be relieved. For infants fed with milk powder, the amount of milk can be reduced, the amount of sugar can be increased (to 10%-12%), and juice can be added appropriately. For babies under 4 months old, some milk cakes can be added to milk, because the carbohydrates in milk cakes can stimulate intestinal peristalsis and help defecation after being partially fermented in the intestines.