Stomach pain on movement may be caused by somatoform disorder, gastric erosion, stomach cramps and other factors. 1. Somatoform disorder: Somatoform disorder is a mental disorder that tends to be overly concerned about one’s body, usually with symptoms of pain. So when suffering from somatoform disorder, you may have the symptom that your stomach hurts when you move. It can be treated by psychological treatment, such as diverting attention, giving positive psychological hints, and going to a professional psychological counseling institution for psychological counseling. 2. Gastric erosion: When gastric mucous membrane erosion occurs, stomach contents such as food may repeatedly contact the erosion site due to the movement of human body, thus resulting in the symptom of stomach pain when moving. It can be treated by medication, such as esomeprazole, omeprazole, ranitidine and other acid suppressants. 3. Stomach spasm: the body may move to stimulate the nerves that innervate the stomach contraction, which leads to stomach spasm. Spasmodic contraction of the smooth muscle of the stomach may result in stomach pain when you move. This can be treated with medications such as pivacurium bromide, atropine, and belladonna combination. When there is a pain when moving the stomach, you need to consult a doctor in time, under the guidance of the doctor to improve the psychological intelligence test, gastroscopy, physical examination, etc., to clarify the cause of the disease, and active treatment.