The peak incidence of nasopharyngeal cancer is 40-60 years old. Nasopharyngeal cancer is rare in childhood, and the incidence rate gradually increases with age, starting to rise at the age of 20-40 years old and reaching its peak at the age of 40-60 years old, and then the incidence rate starts to gradually decrease. The incidence rate of nasopharyngeal cancer is different between men and women, and the ratio of men to women is about (2-3):1, which means that men have 2-3 times more nasopharyngeal cancer than women. Nasopharyngeal cancer also has obvious racial differences, especially in yellow people, such as China, Indonesia, Malaysia, etc., while it is rare for Caucasians to develop nasopharyngeal cancer. The incidence of nasopharyngeal cancer in China is higher in the south, such as Guangdong, Guangxi and Hunan provinces, but the incidence of nasopharyngeal cancer decreases from south to north nationwide.