HPV screening is recommended before taking the 9-valent vaccine, especially for women who are sexually active (no screening for women who are not sexually active), and cervical cancer and precancerous lesions screening is recommended.
HPV screening refers to checking whether the body is currently infected with human papillomavirus, which has various subtypes and is categorized into high-risk and low-risk types.
Infection with high-risk types of HPV is more likely to cause the body to develop lesions, such as precancerous lesions. Vaccination with the nine-valent HPV vaccine can prevent the body from being infected with the HPV virus, but it is not a cure for the subtypes that are currently infected.
Women who are sexually active are at risk of contracting high-risk types of HPV, so screening for current cervical cancer and precancerous lesions is recommended before vaccination.
Vaccination with the nine-valent HPV vaccine is not a substitute for routine checkups, and regular medical checkups are still needed to confirm whether the organism is infected with human papillomavirus.