Infant flatulence can be caused by improper feeding, excessive crying and enteritis. 1. Improper feeding: When feeding babies, they eat a lot of greasy and meaty food as well as food that is easy to produce gas, resulting in flatulence of the baby’s stomach. 2. Excessive crying: If the baby cries during feeding, it is easy to inhale a lot of gas, resulting in flatulence. 3. Enteritis: Infant flatulence may be caused by enteritis, which is mainly caused by bacteria, viruses, fungi, parasites, food irritation, food allergy and other factors, accompanied by bloating, nausea, vomiting and other symptoms. Infant flatulence may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.