The 4-valent cervical cancer vaccine is an imported vaccine, and the Beijing government procurement price is 798 yuan for one injection, and the whole process requires three injections, totaling 2,394 yuan. It is mainly used to prevent cervical cancer caused by 4 types of human papillomavirus, and the effective rate can reach more than 80%. The applicable population is mainly young girls aged 12-14 years old who have not been exposed to the human papilloma virus, and the preventive effect is also very good for women aged 14-18 years old who have not had sex. the effective rate is worse for women aged 18-25 years old who have had sex. It is a new vaccine that just came on the market in 2018, and there is still some controversy about how effective it is, and there is already a 9-valent cervical cancer vaccine on the market for use for women aged 9-45 years old. The primary prevention of cervical cancer is vaccination, and cervical cancer screening is also essential for women who have sex.