Children spitting up may be caused by physiological reasons, but also may be caused by pathological reasons, such as intussusception, congenital megacolon, etc., mainly to take general treatment, surgical treatment. 1. Physiological reasons: mainly because the child is relatively small, gastrointestinal digestive function is not yet perfect, swallowing muscle group coordination is also relatively poor, easy to spit up phenomenon, generally do not need special treatment, with the gradual growth of the child, it will improve. If it is caused by improper feeding, such as feeding too soon, change the feeding method appropriately. 2. Intussusception: It is a common emergency in infants, the specific cause is not clear, it may be related to congenital development, which will lead to spitting up, diarrhea, abdominal pain and other symptoms, once diagnosed, it is necessary to take surgical treatment as soon as possible. 3. Congenital megacolon: it is a common congenital malformation, easily lead to abdominal distension, spitting up and other symptoms, usually need to take enterostomy or radical surgery. If the child spits up milk is more serious, you should go to the hospital in time to find out the cause of the treatment.