The pain on the right side of the abdomen when running may be abdominal soft tissue contusion, appendicitis, intestinal spasm, urinary stones, etc., need to be analyzed specifically. 1. Abdominal soft tissue contusion: acute as well as chronic abdominal soft tissue contusion will appear abdominal pain, but also subcutaneous bruising, local redness and swelling and other manifestations. 2. Appendicitis: appendicitis can appear right abdominal pain, can also be accompanied by nausea, vomiting and other symptoms, abdominal CT and other tests can help to clarify the diagnosis. 3. Intestinal spasm: Intestinal spasm is due to the intense contraction of the smooth muscle tissue of the intestinal wall, so there will be abdominal pain, which can also be accompanied by vomiting and cessation of exhaustion, and other symptoms, such as standing abdominal radiographs and other tests can assist in making a clear diagnosis. 4. Urinary stones: the right side of the urinary stones can appear right abdominal pain symptoms, can also be accompanied by radiating pain, nausea, vomiting and other symptoms, urinary ultrasound and other tests can assist in a clear diagnosis. There are many reasons for the pain on the right side of the abdomen when running, and it is recommended to consult a doctor in time to avoid delaying the condition.