HPV testing is performed by extracting cervical exfoliated cells, rather than simply vaginal discharge, and the test results are more accurate. Now generally use cervical canal smear method for examination, the speculum expose the cervix, cotton swab wipe the cervical surface secretion, put the disposable sterile cervical exfoliated cell sampler into the cervical orifice, generally send to the cervical canal, 10mm from the endocervix 360 degrees one-way rotation for 5 weeks, obtain sufficient amount of epithelial cell sample, slowly remove the sampler, open the cap of the bottle of cell preservation solution, make the sampler brush head completely into the reagent. HPV is known as human papillomavirus, with 25 subtypes, including 18 high-risk types. long-term infection of high-risk types may lead to cervical cancer, especially HPV type 16 and HPV type 18, which are particularly pathogenic, but a positive test result does not necessarily mean cervical cancer, but requires dynamic observation, and if it exists for a long time Treatment is needed if it persists for a long time.