The best age for HPV vaccination is 9 to 14 years old.

　　Cervical cancer is one of the common gynecological cancers and one of the few cancers that can be prevented by vaccine. Experts suggest that the incidence of cervical cancer in China tends to be younger, but the women who are willing to vaccinate HPV (human papillomavirus) vaccine are generally older. It is suggested that more attention should be paid to the vaccination of young women.

　　Bi Hui, the chief physician of the Department of Obstetrics and Gynecology of Peking University First Hospital, found that most of the outpatients who came to consult about HPV vaccination were women over 25 years old, and teenagers aged 13 to 18 only occasionally saw them, and few parents brought their daughters to consult about HPV vaccination.

　　Bi Wei said: "In China, bivalent and tetravalent HPV vaccines are currently approved for women aged 9 to 45, and nine-valent HPV vaccines are suitable for women aged 16 to 26. HPV vaccine has the best effect before sexual life, and teenagers should be the key population. The best vaccination age recommended by the World Health Organization is 9 to 14 years old. Our country’s guide recommends 13 to 15 years old as the key population. "

　　According to reports, viruses such as HPV are divided into multiple subtypes, which can be classified into high-risk and low-risk types. High-risk type can cause cervical cancer, anal cancer, oropharyngeal cancer, etc. Low-risk type can cause flat wart, common wart and condyloma acuminatum on the skin. The main route of transmission of high-risk HPV is sexual transmission.

　　Bi Wei introduced that in recent years, a study of more than 130,000 gynecological outpatients in eight tertiary hospitals across the country showed that the infection rate of high-risk HPV was nearly one-fifth.

　　Studies have shown that bivalent and tetravalent HPV vaccines can prevent about 70% of cervical cancer and nine-valent vaccines can prevent about 90% of cervical cancer due to the different number of preventable virus subtypes. Experts emphasize that vaccination can greatly reduce the risk of cervical cancer.