Generally gastric disease does not make people lose weight, when gastric disease affects the patient’s eating or transformed into malignant can affect weight. Gastropathy is a collective term for a variety of stomach-related diseases, mainly manifested as epigastric discomfort, pain, bloating, belching (hiccups), nausea, vomiting and other symptoms, and clinically common gastropathies include acute and chronic gastritis, gastroduodenal ulcers, gastric polyps, and space-occupying lesions of the stomach. Ordinary gastric diseases, such as gastritis, and does not affect the patient’s appetite, can be normal eating, digestion and absorption, generally will not make weight loss, when gastric diseases lead to loss of appetite, food loss, can not meet their own nutritional needs or the presence of gastric malignant tumors lesions, can lead to weight loss. If the patient has weight loss, it is recommended to go to the hospital in time to improve the gastroscopy and other auxiliary examinations, to clarify the cause of the disease and then targeted treatment, so as not to delay the condition.