The number of people who require biopsy after gastroscopy cannot be estimated because each individual’s condition is different. For patients with proliferative disease or severe ulcers found during gastroscopy, a biopsy is required to qualitatively exclude malignancy. Usually, patients with lesions present after gastroscopy, such as gastritis, gastric ulcer, reflux esophagitis, and other diseases with progressive worsening of symptoms, may have tissue taken for biopsy. Biopsy can clearly diagnose the pathological changes of the patient at this time to achieve early detection and treatment. At the same time, patients need to pay attention when taking a biopsy, avoid eating for 1-2 hours, and can first drink a small amount of water to reduce the friction on the traumatic surface of the gastric mucosa. In addition, patients with stomach diseases, in addition to treatment, usually need to pay attention to conditioning, eating vegetables and fruits containing more fiber, eating a light diet, avoid greasy, spicy, cold, etc.. It is necessary to maintain a relaxed mood and exercise in moderation to help improve the disease.