Frequent vomiting in small children may be related to indigestion, recurrent gastroenteritis, chronic appendicitis and so on. 1. Indigestion: Children’s digestive ability is relatively weak, if they eat too much indigestible food or overeat, it may cause indigestion and vomiting symptoms. 2. Recurrent gastroenteritis: generally caused by bacterial or viral infections, low resistance can be repeatedly infected, there may be frequent nausea, diarrhea, vomiting and other symptoms. 3. Chronic appendicitis: generally caused by appendiceal lumen obstruction, congenital malformation of the appendix, bacterial infections, etc., recurrent attacks, may appear often lower right abdominal pain, vomiting and other symptoms. Children often vomit may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor’s treatment.