Hidden pain at the corner of the stomach may be caused by dietary stimulation, indigestion, stomach diseases and other reasons. 1. Dietary stimulation: excessive consumption of spicy and stimulating food, consumption of spoiled food and other adverse stimulation of the gastric mucosa, it is easy to appear at the corner of the stomach hidden pain. 2. Indigestion: gastric insufficiency leads to weakening of gastrointestinal function, food into the gastrointestinal tract can not be fully digested and absorbed, and prolonged retention in the gastrointestinal tract causes irritation of the intestinal mucosa, which may lead to vague pain in the corner of the stomach. 3. Gastric diseases: gastric ulcer, gastritis and other gastric diseases of inflammation stimulation easily lead to gastric mucosa congestion, edema, there will be hidden pain in the corner of the stomach, may also be accompanied by nausea, acid reflux and other symptoms. If the pain in the corner of the stomach persists and cannot be relieved, you should consult a doctor for targeted treatment under the guidance of the doctor.