Left abdominal pain after eating is mostly considered to be related to factors such as gastric ulcer, chronic gastritis and chronic pancreatitis. Patients with gastric ulcer and gastritis will stimulate increased secretion of gastric acid after eating, and excessive gastric acid will cause irritation to the gastric mucosa, especially if they eat spicy, frozen, cold and very irritating food, it will easily cause stomach cramps and pain. Chronic pancreatitis abdominal pain is often induced by factors such as satiety or eating greasy food, mostly epigastric pain, also seen as left upper abdominal pain. In addition, strenuous exercise after eating may lead to stomach cramps and intestinal kinking, causing left-sided abdominal pain.