Any changes in the baby at home will be concerned, sometimes the baby is not comfortable can not say, only by crying or parents and friends of careful observation to find, sometimes colic can occur, once the child appears crying, parents do not know what is going on, it will be very anxious, the next for you to introduce the specific causes of infant colic. The cause of infant colic is not definitive, usually the following situations, is likely to cause the child to appear infant colic factors. Because the infant gastrointestinal function is not well developed, many other organs and tissues are not yet mature. The development of the nerves in the intestinal wall lags behind, resulting in irregular intestinal peristalsis, fast in some places and slow in others, and this incongruity can easily cause colic. In addition, the baby’s digestive system is also very imperfect, prone to flatulence, which in turn leads to colic. Some babies will also have lactose intolerance and milk protein allergy, which will also show abdominal distension and colic. Many people believe that a child’s crying behavior is an emotional catharsis. The human nervous system is still very underdeveloped in infancy and can only feel external stimuli, which will then be expressed by crying. The above is the analysis of the causes of infant colic, parents and friends need to observe more infant discomfort symptoms, find the problem, timely access to the hospital, I hope we can help reduce the occurrence of colic in children.