Newborns like to sleep on their stomachs is generally normal, but may also be caused by abdominal discomfort and other conditions caused by the abnormal situation. 1. Normal situation: because the baby in the fetal period is mostly in the flat state, abdomen down, back up, so will still like to sleep on their backs after birth, this situation is mostly related to the sense of security, is a normal physiological phenomenon. However, it is usually not recommended that newborns sleep on their stomachs for a long time, so as not to affect the breathing, usually recommended that newborns lie flat to sleep. 2. abnormal situation: when the newborn appeared indigestion, abdominal pain and other abdominal discomfort symptoms, sleep on the stomach will relieve abdominal discomfort symptoms, this situation is abnormal. At this time you need to take the baby to the hospital in time for a medical examination, hot compresses around the navel to relieve abdominal discomfort, medication if necessary. It is recommended that newborns have any abnormalities should seek medical attention in a timely manner, so as not to delay the condition.