Children’s frequent stomach discomfort may be related to chronic gastritis, peptic ulcer, Crohn’s disease and so on. 1. Chronic gastritis: it may be caused by Helicobacter pylori infection, bile reflux and other causes of gastric mucosal damage, often with recurrent or irregular abdominal pain. 2. Peptic ulcer: Duodenal ulcer is the most common type of peptic ulcer, which is attacked by gastric acid and pepsin, leading to damage of gastric mucous membrane, and abdominal discomfort occurs when food stimulates the ulcer surface. 3. Crohn’s Disease: Chronic inflammation of the colon, such as the end of the ileum, may be caused by immune abnormalities, infections, heredity, etc. It may manifest as intermittent abdominal pain. It can show intermittent abdominal pain and other symptoms of abdominal discomfort. Children’s stomach often uncomfortable can also be seen in other causes, it is recommended that timely medical treatment, follow the doctor’s instructions for relevant examinations, in the doctor’s help to clarify the cause, and targeted treatment or treatment.