Although the causes of esophageal cancer are not very clear at present, as far as we know, prevention should start from the following aspects. Changing dietary habits Do not eat too hot food, do not eat hot and too rough food. Too hot and rough food in the esophagus, contact with the mucosal epithelium, will burn the esophageal mucosal epithelium, so that the mucosal epithelium breakage, ulceration, bleeding and other lesions. Don’t eat too fast, don’t gobble, don’t eat food too fast. 2, do not smoke, drink less alcohol Do not drink excessive alcohol to reduce the stimulation of the esophageal mucosa, due to the high content of alcohol or due to the other harmful chemicals contained in the wine may make the smoking-induced cancer of the oral cavity, pharynx, larynx, and esophagus parts of the incidence of the factors increased exponentially. 3.Not squatting food Because squatting food and drink increased intra-abdominal pressure, food through the cardia into the stomach is bound to be blocked, the esophagus to increase peristalsis and pressure to transport food masses. The friction between food and esophagus aggravates the damage of esophageal wall. Loss of mucosal epithelium will quickly proliferate to repair the mucosal epithelium that has been broken and inflamed. If the mucosal epithelium is subjected to this kind of undesirable stimulation frequently and repeatedly, the mucosal epithelium will appear some abnormal “heteromorphic” cells in morphology and function during the process of repeated proliferation and repair, and if more of these abnormal cells are accumulated, they will develop in a bad direction and gradually develop into a “heteromorphous” cell. When these abnormal cells accumulate, they will develop in a bad direction, gradually undergo malignant changes, and finally form cancer cells that are constantly expanding. Don’t eat moldy food and eat less sauerkraut: moldy food can produce toxins. Sauerkraut contains a large amount of nitrosamines, which have strong cancer-causing effect. Reduce or avoid the intake of nitrosamine chemicals, nitrosamines are a class of highly carcinogenic chemical carcinogens. Therefore, as far as possible, do not eat long-stored spoiled food, cured meat food and pickled vegetables. Do not eat moldy food, moldy food is also one of the factors that induce esophageal cancer. Don’t Ignore Early Omen of Esophageal Cancer As the saying goes, “three feet of ice is not cold in a day”, the development of esophageal cancer is not a matter of overnight. Therefore, middle-aged and old people over 40 years old, especially those who come from or live in areas with high incidence of esophageal cancer (more so for men), and those who usually consume sauerkraut and alcohol, should not take it lightly when they have one or more precursor symptoms, such as difficulty in swallowing, retrosternal pain or discomfort, etc., and they should seek medical treatment in time for esophageal exfoliative cytology, X-ray barium meal, esophageal microscopy and biopsy so that the disease can be detected in the early stage. The condition should be detected early. As long as three early detection, early diagnosis and early treatment are achieved, the survival rate of patients can be greatly improved.