The pain in the stomach after eating may be related to indigestion, gastric ulcer, chronic gastritis and other diseases. 1. Indigestion: If the patient eats too much spicy, cold and other stimulating foods, these foods will increase the burden on the stomach, resulting in different degrees of damage to the gastric mucosa triggering the symptoms of hidden pain in the stomach after eating. During the period can be accompanied by loss of appetite, stomach bloating, nausea and vomiting and other clinical manifestations. 2. Gastric ulcer: For people who experience repeated stomach pain after meals, it is more likely that they have gastric ulcer. The mechanism of its occurrence is related to the increased secretion of gastric acid after meals, which stimulates the ulcerated surface of the stomach. During the onset of the disease, patients may also have heartburn, acid reflux, bloating, nausea and bad breath and other clinical manifestations. 3. Chronic gastritis: patients with chronic gastritis are prone to recurring clinical symptoms such as loss of appetite, stomach acid, heartburn, stomach pain, stomach bloating. Chronic gastritis can lead to different degrees of damage to the patient’s gastric mucosa, after eating a meal, gastric acid secretion will also increase because of gastric acid stimulation of the damaged gastric mucosa, triggering the symptoms of vague pain in the stomach. There are many types of gastric diseases that can cause vague stomach pain after eating, so if necessary, patients need to go to the hospital and listen to the doctor’s opinion after confirming the type of disease according to the results of gastroscopy, barium meal imaging, C14 breath test and other related examinations.