The specific cause of nasopharyngeal carcinoma, a type of malignant tumor, is currently unclear, but it is considered to be related to some high-risk factors that may lead to the occurrence of nasopharyngeal cancer.

Firstly, there are cases of EB virus infections in the nasopharyngeal area. The long-term stimulation of the nasopharyngeal mucosa by this virus leads to hyperplasia of the mucosa, which can become malignant and eventually form nasopharyngeal cancer.

Additionally, some clinical studies suggest that the occurrence of nasopharyngeal carcinoma is related to genetic factors, indicating a genetic predisposition to nasopharyngeal carcinoma, which leads to its development.

Furthermore, some considerations involve external carcinogenic factors affecting the nasopharyngeal area, such as long-term smoking or environmental air pollution, which can also lead to a high incidence of nasopharyngeal cancer.