Gastric erosion has a certain possibility of cancer, so it is better to take biopsy during the examination. Gastric erosion indicates that the patient’s gastric mucous membrane is damaged to a more serious degree, and even has caused invasion of the patient’s gastric wall muscle layer. Gastric erosion patients in gastroscopy, it is best to extract the biopsy in the erosion area for biopsy, can understand the patient’s degree of erosion, and judgment of the disease, through the biopsy can help to determine the type of the patient’s disease, and to choose the appropriate drugs for treatment. After a long period of time, many patients with celiac disease will have a tendency to become cancerous, and biopsy can promptly find out whether there is a possibility of cancer, and early intervention in the disease. After the biopsy, patients with celiac disease should do a good job of stomach care, during this period should try to fluid or semi-liquid food, such as noodles, porridge, reduce the intake of stimulating, cold food, otherwise it will affect the repair of the gastric mucosa.