Nasopharyngeal carcinoma is a highly prevalent malignant tumor in China, especially common in the Guangdong and Guangxi regions, as well as other coastal areas including Hunan, Fujian, and Jiangxi. These regions are among the highest incidence areas for nasopharyngeal carcinoma worldwide. The incidence rate in males is three times that of females, with the age group of 40 to 50 years being particularly at risk. The occurrence of nasopharyngeal carcinoma is associated with genetic, viral, and environmental factors, exhibiting racial and familial patterns. In areas like Guangzhou and the Pearl River Delta, it is possible for five out of nine people in the same family to have nasopharyngeal carcinoma. Infection with the Epstein-Barr virus is also one of the causes of nasopharyngeal carcinoma, in addition to environmental factors. Areas with low trace elements in rice and water, as well as low fluoride levels, are prone to higher incidences of this cancer. Patients with nasopharyngeal carcinoma typically have higher fluoride levels in their hair, and nitrites are also one of the major contributing factors to the condition.