There can be many causes of tummy pain in babies, which can be surgical appendicitis, internal gastrointestinal dyspepsia, gastrointestinal infections, non-infectious diseases such as allergic purpura, and constipation in children can also be a tummy ache, and there are even children who get tummy aches when they are emotionally upset or very nervous. Therefore, it is important to carefully recall the trigger, the duration and characteristics of the pain, and to observe the accompanying symptoms for your child’s tummy ache. Some children have stomach pain when they eat, and the pain is in the upper abdomen, so it may be gastritis, and if the parents have family members with chronic old stomach disease, they should be alert to the possibility of H. pylori infection. Some children have pain around the belly button, so indigestion, intestinal worms is the proverbial worm in the stomach, etc. are possible. Some children may be stressed, tense, or unhappy, and can also have pain around the belly button. Gastroenteritis caused by gastrointestinal infection can be painful in the upper abdomen, then around the umbilicus, then everywhere, and so on, with light bouts of pain, and some children may also have vomiting, diarrhea, and other accompanying symptoms. Appendicitis or intussusception, intestinal obstruction and other diseases can also cause abdominal pain, which is often more severe. The pain of appendicitis may be confined to the right lower abdomen, but there are children with less typical pain, so if there is significant abdominal pain, it is recommended to seek medical attention. In conclusion, stomach pain in children is a very common, but can have very many causes of presentation and requires patient and careful observation to actively seek the cause of the onset and give effective treatment.