The main symptoms of esophageal lesions are dysphagia, heartburn, chest pain, acid reflux, bleeding and malnutrition, which are as follows: First, dysphagia, patients will have a foreign body sensation, blockage, itching, or pain when swallowing food, the pain will be more pronounced when eating stimulating food, and the serious condition will also cause dysphagia and vomiting. Second, heartburn, heartburn is a burning sensation radiating from the back of the sternum to the neck, accompanied by acid reflux, chest pain, etc., usually caused by gastric acid stimulation, common in reflux esophagitis. Third, bleeding, the most important symptoms are vomiting blood and black stools, if the bleeding is small, there will be no obvious systemic symptoms, and more bleeding will lead to anemia. Fourth, malnutrition, due to the patient’s difficulty in swallowing food, long-term will lead to malnutrition, manifested as weakness of limbs, body wasting.