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HPV (human papillomavirus) infection is a common sexually transmitted disease that can cause a variety of illnesses, including genital warts and cervical cancer. HPV infection can be divided into different stages depending on the degree of infection. During sexual life, women are easily infected with the HPV virus and develop cervical cancer. In order to better prevent and treat HPV infection, we need to understand the different stages of HPV infection and intervention and treatment methods. This article will introduce in detail the different stages, symptoms, preventive measures and treatment methods of HPV infection.