Hidden pain in the stomach from time to time may be related to the stimulation of diet, or may be caused by indigestion, chronic gastritis and gastric ulcer. 1. Dietary stimulation: If you eat too much cold, hard or spicy food, it will cause adverse stimulation to the stomach, resulting in spasm and contraction of the stomach or affecting the digestive function, which will show the symptom of vague pain in the stomach from time to time. 2. Indigestion: Due to the recent diet irregularities, regular overeating, resulting in gastrointestinal dysfunction, resulting in gastrointestinal tract digestive capacity is weakened, resulting in indigestion, resulting in the retention of food in the stomach, will also cause the stomach from time to time vague pain. 3. Chronic gastritis: Inflammatory lesions of the gastric mucosa can also lead to occasional vague pain in the stomach, accompanied by early satiety, acid reflux and other symptoms. Gastric ulcer patients due to gastric mucous membrane damage, gastric acid continues to stimulate the gastric mucous membrane damage site, can also cause vague pain. If the stomach aches from time to time, and if it does not get better, you should go to the doctor as soon as possible, and be guided by the doctor to carry out targeted examination and treatment.