After removing local secretions with a cotton swab, dip it in 5% glacial acetic acid and apply it to the skin lesions and the surrounding normal skin and mucous membranes, and observe it after 2~5 minutes, the lesions become white, and the surrounding normal tissues don't change color as positive.

Related Diseases: Diseases related to human papillomavirus include, condyloma acuminatum, cervical cancer, etc.