Baby colic may be related to improper feeding, intestinal flora imbalance, abnormal gastrointestinal dynamics, autonomic nervous system disorder, etc. However, the etiology leading to pediatric colic is not yet completely clear. It is recommended to go to the hospital in time for treatment. 1. Improper feeding: such as swallowing excessive air during feeding, overfeeding, not helping the baby burp after feeding, etc. may cause pediatric colic. 2. Intestinal flora imbalance: Helicobacter pylori or non-symbiotic bacteria in the intestines colonize the intestines leading to intestinal flora imbalance, which may cause pediatric colic. 3. Abnormal gastrointestinal dynamics: temporary dysfunction of the enteric nervous system and excessive hormones regulating intestinal peristalsis may cause pediatric colic. 4. Autonomic nervous system disorder: central nervous system developmental imbalance may be related to cause pediatric colic. The cause of pediatric colic is not yet completely clear, if colic occurs, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease.