Lesions on the stomach are not necessarily malignant lesions, most of them are benign lesions of the stomach. For example, clinically more common gastritis, gastric erosion, gastric ulcer, gastric polyps, and gastric mucosa white spots. If it is a malignant lesion of the stomach, in the electronic gastroscope can be seen irregular growth of the mass, the surface of the mass can exist ulcers, erosion, and so on. If there is a suspected mass, the doctor will routinely give a biopsy of the gastric mucosa and send it to the pathologist for biopsy. Only pathology can distinguish malignant lesions or benign lesions. If the disease does exist, the patient needs to cooperate with the doctor to give regular treatment. If the disease is malignant, it needs to be dealt with in a timely manner, usually by seeking surgery. If the opportunity for surgery has been lost, radiotherapy and chemotherapy can also be done.