Of esophagus cancer come on main with concerned at 5 o'clock below:

(1) inferior saltpetre amine: Inferior saltpetre amine compound is a kind of very powerful carcinogen, research shows esophagus cancer sends the inmate of pickled Chinese cabbage of edible of area forest county high, the existence in fluid of gastric juice, make water has the methylic benzyl that causes esophagus cancer inferior saltpetre amine, inferior nitro- pyrrole alkyl, inferior nitro- guanidine Ding. Discover quantity of edible pickled Chinese cabbage and esophagus cancer incidence of a disease to become direct ratio. 　
(The injury of 2) esophagus mucous membrane: Long-term happy event is entered very hot feed, thick feed, drink strong tea, feed the excitant food such as chili to be able to cause esophagus mucous membrane more injury, cause esophagus mucous membrane change between hyperplasia, also may be one of elements that cause cancer. Smoking, drink is spirited wine and esophagus cancer come on have particular concern. All sorts of esophagitis that do not heal for a long time may be the pathological changes before the cancer of esophagus cancer. 　
(3) mould sends cancerous element: Change with mildew the pathological changes before food can cause the cancer of small rat esophagus and stomach or scale shape epithelioma. This kind of mould and inferior cancer of saltpetre amine hurried has synergism. 　
(4) microelement: The molybdenum in molybdenum of the serum in crowd of area of esophagus cancer tall hair, hair molybdenum, make water molybdenum and esophagus cancer organization under normal. Forest prefectural esophagus cancer lacks molybdenum in natural environment and climate of tall hair area, the curb cancer action of molybdenum is confirmed by most scholar. 　
(5) genetic element: Esophagus cancer is had remarkable familial collect a phenomenon, tall hair area is successive 3 generation or sicken of 3 acting above are familial see repeatedly