HPV vaccines include bivalent, quadrivalent and nine-valent. The bivalent and quadrivalent HPV vaccines have 3 doses in common, but the age, timing and type of cervical cancer prevention are different. Age: 1. Bivalent HPV vaccine: for women aged 9-25 years old; 2. Quadrivalent HPV vaccine: for women aged 20-45 years old. Vaccination time: 1. bivalent HPV vaccine: 0, 1, 6 months; 2. quadrivalent HPV vaccine: 0, 2, 6 months. Type of prevention: 1. Bivalent HPV vaccine: mainly prevents cervical cancer caused by two subtypes of HPV16 and HPV18; 2. Quadrivalent HPV vaccine: mainly prevents cervical cancer caused by HPV6, HPV11, HPV16 and HPV18. Prevention effect: 1. bivalent HPV vaccine: can prevent 70% of cervical cancer; 2. quadrivalent HPV vaccine: can prevent 70% of cervical cancer and 90% of acromegaly. In addition, there is a difference in price between the bivalent and quadrivalent HPV vaccines. Usually the price of bivalent is slightly lower compared to quadrivalent, but there are some differences in price due to regional differences. For the prevention of cervical cancer caused by high-risk HPV infection, HPV vaccination is currently a more convenient and effective method, the best time to get vaccinated is before the first intercourse, it is recommended to choose the right vaccination according to your situation.