HPV: the acronym for human papillomavirus has more than 100 subtypes, about 23 associated with cervical infection, half of which are associated with precancerous lesions and cervical cancer, as high-risk HPV 80% of sexually active adults have been infected with one or more types of HPV, most clear after 8-10 months, 10-15% are persistently infected with the highest age of infection at 20-25 years old condoms cannot avoid HPV infection low immunity susceptibility and lesions are prone to progression there is no effective drug to treat HPV infection is an effective means of screening for cervical precancerous lesions and cervical cancer.