Pediatric gastroenterology is a branch of science that is involved in the treatment of pancreas, gastrointestinal tract, and liver problems from infancy until the age of eighteen. The diseases it is associated with are gastritis, persistent vomiting, acute diarrhoea, and problems with the development of the gastric tract. Chronic abdominal pain is common in children and adolescents. The proper functioning of the internal health and the gastric tract is related to the nutrition that the mother or its child takes. Self-directed hypnotherapy is known to be the reasonable option for children and adolescents with functional abdominal pain disorders.