Sinus erosion can be cancerous. Sinus celiac disease is a superficial ulcer confined to the gastric mucosa. Sinus celiac disease is not the same as a gastric ulcer, which may develop into a gastric ulcer over time if not treated properly, but not all sinus celiac disease develops into a gastric ulcer and may heal on its own. Sinus erosion is usually not cancerous, but gastric ulcer is a risk of cancer. Patients with sinus erosion may experience abdominal distension and discomfort, even abdominal pain, as well as digestive symptoms such as nausea, vomiting, acid reflux and belching, but the specific manifestations vary from patient to patient, and gastroscopy and biopsy can be performed to confirm the diagnosis. The main cause of gastric sinus erosion is H. pylori infection, medication can be used in quadruple therapy: acid suppressant + gastric mucosa protector + two antibiotics, and must pay attention to a light diet, not spicy and stimulating food. In fact, we should develop good habits in our daily life, not overeating, eating less and more meals, and not eating spicy and irritating foods, which will greatly reduce the incidence of digestive tract diseases. Many people around us may suffer from different degrees of digestive tract diseases. If we feel unwell, we should go to the hospital in time to achieve early detection, early diagnosis and early treatment, which can reduce the risk of cancer.