Pathogenic factors of nasopharyngeal carcinoma

What are the risk factors for nasopharyngeal cancer? In recent years, the incidence of nasopharyngeal cancer in my country has been increasing year by year. There are many factors that may cause the disease, such as family history of cancer, dietary habits, environmental pollution, occupation and other factors. The incidence of nasopharyngeal cancer in Chinese is 30 times that of Indians, 34 times that of Americans, and 60 times that of Japanese. The main risk factors for nasopharyngeal cancer are:

(1) Viruses:

It may be related to Epstein-Barr virus infection, but the exact cause has not yet been fully understood.

(2) Proliferative lesions:

Proliferative lesions of the nasopharyngeal mucosa are often considered precancerous lesions, which require regular follow-up observation.

(3) Heredity:

Heredity may be a factor, but nasopharyngeal carcinoma is not a disease with genetic predisposition and genetic susceptibility.

(4) Bad living habits:

If you like to eat pickled food (pickles, salted fish, etc.), and often eat such food, the incidence of nasopharyngeal cancer will increase by 2 to 7 times.

(5) Exposure to chemicals:

People who are constantly exposed to formaldehyde. Newly renovated houses can only be occupied after the formaldehyde smell has dissipated.

(6) Smoking:

People who have heavy smoking habits.