HPV virus has many subtypes, divided into high-risk and low-risk, different types of virus infection with different symptoms: 1, high-risk types of HPV, such as 18, 31, 16, 33, 52, 66, etc., associated with the development of cervical cancer, most of the initial no symptoms, with the progress of the disease may appear contact bleeding or abnormal discharge. 2, low-risk types, such as HPV11, 6, 44, 42, may The HPV virus can also cause warts on the glans. 3, some types of HPV virus infection may appear as skin warts, recurrent respiratory polyps, which can be diagnosed by laboratory HPV testing.