The most common cause of burning sensation under the saber is gastritis or gastric ulcer, and some of them are secondary to ulcers in the lower esophagus, and the patient’s symptoms are aggravated especially after eating. You should pay attention to your diet, it is best not to drink alcohol, and not to overeat. You can take oral medication to protect the mucosa of the gastrointestinal tract, commonly used is omeprazole enteric tablets, eat less and more meals, with light, easily digestible food as the main focus, it is best not to drink alcohol. If the recurrent symptoms do not improve, or if there is nausea or vomiting after eating, gastroscopy should be performed promptly to exclude organic lesions. Because benign ulcers are also prone to malignancy and the patient will have significant weight loss. After the diagnosis of malignant tumor, relevant examination should be improved and surgical treatment should be actively performed. Because malignant tumors are prone to lymph node metastasis and bloodstream metastasis, there are many patients who, after surgery, should be directed to adjuvant treatment based on detailed clinical staging.