Stomach pain for several days may be caused by unclean diet, indigestion, gastritis and other reasons. 1. unclean diet: if the child’s diet is not regular in his normal life or if he eats cold and irritating food, it may lead to the situation of stomach pain for several days. 2. Indigestion: because the child’s gastrointestinal tract is relatively fragile, eat more food than the upper limit of the gastrointestinal tract’s ability to digest and absorb the food caused by indigestion, it is easy to appear in the case of stomach ache for a few days, and may be accompanied by diarrhea, nausea and other symptoms. 3. Gastritis: If you suffer from gastritis, due to the destruction of the gastric mucosa, congestion or edema may occur, after eating because of the friction between the food and the stomach wall, which may cause the child’s stomach ache for a few days. The child’s stomach pain for several days, there may also be 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 to give targeted treatment or treatment.