Pain on both sides of the stomach when patients run, the common clinical reasons are mainly the following: First, patients often abdominal muscle exercise, can cause more local metabolic waste such as lactic acid accumulation, running due to muscle tremors, will cause pain symptoms on both sides of the stomach. At this time, the patient can through adequate rest, both sides of the abdomen appropriate massage, physiotherapy and hot ointment package external compress, to promote lactic acid and other metabolic waste absorbed faster, so that the pain symptoms on both sides of the stomach can be improved. Second, if the patient’s abdominal cavity is accompanied by malignant tumor hyperplasia, such as multiple mesenchymal tumors of the small intestine, because the intestinal tube is relatively free, the activity amplitude is relatively large when running, which can cause pain symptoms on both sides of the stomach. Patients can improve the CT and ultrasound examination of the abdomen to clarify the specific location and nature of mesenchymal tumor. It is recommended to perform surgery to remove mesenchymal tumor as soon as possible, and after surgery, chemotherapy can be combined with treatment, and some patients can often achieve better treatment results.