Last Han Dou the cause of disease of the cancer

The last Han Dou is located on a Han bone inside the body and swallows with Shai Dou and eye socket, Lu bottom and nose and the mouth cavity is adjacent.Present a taper body, in the seamy side, its base's top Tu to the Quan bone, after up go directly to the point and wing Mao crack of eye socket bottom.The good hair is at the 51~60 years old age set, the male is more than a female.Last cancer of Han Dou at our country the north Be more to see, Be resided to the second in the neck malignant tumor in the head according to the statistics.
Cause of disease
Still not explicit currently.May cause cancer the factor have:
(1)the chronic last Han Dou is burning the Dou causing Han glue the film height non- typical model to increase to living and finally cause cancer's changing.
(2)be engaged in Nie bootmaker the work grows of the worker is usually stimulated by dust physics and chemistry.
(3)contact fluorescence the powder project material.
(4)smoke cigarette, alcohol stimulate.