HPV is a family of more than 200 viral genotypes. It can be transmitted through vaginal, anal, or oral sex. HPV Viral genotypes transmitted sexually are classified as low risk and high risk. Low-risk HPV infections rarely cause disease. Very few low-risk HPV genotypes, on the other hand, can cause warts on or near the genitals, anus, mouth, or throat. High-risk HPV types have been linked to a variety of cancers. There are 14 high-risk HPV types, including HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68. The majority of HPV-related cervical cancers are caused by two of these viruses, HPV16 and HPV18.