Babies crying at night can be caused by physiological factors or pathologic factors, common pathologic factors include indigestion, intestinal obstruction and so on. 1. Physiological factors: for example, the baby is hungry at night and wants to eat, or the baby wants to urinate and defecate, as well as the sudden sound of the room, the temperature is not adapted to, etc., will cause the baby to cry more than at night. 2. Indigestion: because the baby’s gastrointestinal function is not yet well developed, if the parents are not fed properly on weekdays, it is easy to cause the baby to suffer from indigestion, which can be abdominal pain, nausea, belching and other discomforts at night, resulting in the baby’s body is difficult to appear at night, crying more than. 3. Intestinal obstruction: its typical symptoms are vomiting, paroxysmal abdominal cramps, constipation, defecation and exhaustion difficulties, loss of appetite, etc., so the baby will be because of these uncomfortable symptoms, which led to more than one cry at night. Babies cry at night, there may also be other reasons, it is recommended to go to the hospital in a timely manner to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.