Nasopharyngeal cancer etiology is not yet very clear, as the nose Kong nasopharynx, oral the same, susceptible to the impact of the external environment, such as long-term exposure to certain chemical carcinogens (pesticides, benzene coal tar, oil and tobacco, etc. - ), which directly stimulate nasal carcinogenic substances, such as Cantonese from time to eat like salted fish, such as marinated meats. And nasopharyngeal carcinoma in recent years found a herpes virus (EB virus) is closely related to Xiao, it is because in most patients with nasopharyngeal carcinoma patients with serum containing high titer of anti-EB virus antibodies. Its carcinogenic mechanism is not clear. According to a survey of genetic factors in the incidence rate of nasopharyngeal carcinoma, plays a certain role, and some stem from the brothers, sisters or parents with nasopharyngeal carcinoma, also twin brothers have been suffering from nasopharyngeal carcinoma.
