Baby constipation can’t pull out and keep crying, may be caused by improper diet, irregular bowel movement and congenital megacolon, etc. Parents can adjust the diet, regular bowel movement, and follow the doctor’s instructions through medication and surgical methods for treatment. 1. Improper diet: you can give your baby a good diet, ensure adequate water intake, eat more vegetables and fruits, increase the fiber content in the diet, can effectively improve the baby constipation. 2. Irregular bowel movements: because the stool in the intestinal tract stays too long, so that the water in the stool is reabsorbed and utilized by the intestinal tract, stool dryness will aggravate the constipation, parents should give the baby to develop the habit of regular bowel movements. If the effect is not good, you can follow the doctor’s advice to the baby to use lactulose and other drugs to treat constipation. 3. Congenital megacolon: due to the continuous spasm of the intestinal tube, resulting in feces can not be discharged. Parents can follow the doctor’s advice to the baby to use the open plug to relieve constipation, the effect is not good, then you can choose surgery for treatment. If the baby is often constipated and can not pull out all the time crying, parents should take the baby to the hospital in a timely manner, to clarify the cause of the disease under the guidance of the doctor reasonable treatment.