The stomach pain in the morning may be caused by duodenal ulcer, acute pancreatitis, pelvic inflammatory disease or adnexitis. 1. Duodenal ulcer: typical pain manifested as fasting pain, because the morning did not eat so there will be a morning stomach pain, accompanied by heartburn, acid reflux and other manifestations, after eating abdominal pain can be relieved. This situation should consider the possibility of duodenal ulcer. 2. Acute pancreatitis: due to overeating and excessive alcohol consumption, pain in the upper and middle abdomen, accompanied by nausea, vomiting and other symptoms. Most patients with acute pancreatitis prefer medical treatment and have a better outcome. 3. Pelvic inflammatory disease or adnexitis: Due to the stimulation of inflammation and the progression of the disease, stomach pain in the morning, accompanied by menstrual abnormalities, abnormal leukorrhea and other manifestations. There are many other causes of stomach pain in the morning, you need to go to the hospital, after a clear diagnosis of the cause of the targeted treatment, you can not randomly use drugs.