Nine-valent refers to the nine-valent HPV vaccine, which is also necessary for men if needed. HPV is also known as human papillomavirus, most people may be infected with HPV virus, most patients are transient infection, can recover by themselves. A small number of patients will have a persistent infection. If the infection persists for more than 12 months, it may increase the risk of cervical cancer, anal cancer, glans cancer and other diseases. HPV vaccine is one of the ways to prevent infection, and it is necessary for men to get the nine-valent HPV vaccine when conditions permit. With the vaccination, men are able to avoid contracting the nine HPV viruses covered by the nine-valent HPV, while reducing the chances of transmitting them to women. Of course, the HPV vaccine does not mean that men are completely protected from HPV-related diseases, but it is only a preventive measure. To summarize, for the sake of men’s and women’s own health, it is necessary for men to take the HPV vaccine, and it is recommended to go to the hospital in time to make an appointment for vaccination.