The causes of stomach pain with back pain may be caused by gastric ulcer, pancreatitis, coronary heart disease, liver and gallbladder diseases. 1. Gastric ulcer: Since the nerves in the stomach and the nerves in the back belong to the same spinal cord, they are of the same origin, so when gastric ulcer causes gastric pain, the pain can be radiated through the spinal cord along the nerve endings to the back. 2. Pancreatitis: This disease usually manifests itself as epigastric pain, radiating back pain, fever, and nausea and vomiting, and is often associated with gallstones, biliary tract infections, and excessive alcohol consumption. 3. Coronary heart disease: Coronary heart disease is a disease in which the coronary arteries undergo atherosclerosis leading to narrowing or occlusion of the blood vessel lumen, causing myocardial ischemia and hypoxia. It mainly manifests as chest pain, chest tightness, palpitations and other symptoms, and may also cause radiating stomach and back pain. 4. Liver and gallbladder diseases: Cholecystitis, gallstones and other liver and gallbladder diseases may also cause epigastric pain, because of inaccurate positioning of visceral nerves, which may cause radiating or involving stomach and back pain. It is recommended to go to the hospital in time for the symptoms of stomach pain with back pain, to clarify the cause of the disease, and to carry out treatment under the guidance of the doctor.