Types of Human Papillomavirus


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Types list: The list of types of Human Papillomavirus mentioned in various sources includes:

  • HPV (harmless types)
  • HPV (sexually transmitted types)

Types discussion: Human papillomavirus, or HPV, is the name of a group of viruses that includes more than 100 different strains or types. Over 30 of these are sexually transmitted, and they can infect the genital area, like the skin of the penis, vulva, labia, or anus, or the tissues covering the vagina and cervix.

Some of these viruses are considered "high-risk" types and may cause abnormal Pap smears and cancer of the cervix, anus, and penis. Others are "low-risk," and they may cause mild Pap smear abnormalities and genital warts. Genital warts are single or multiple growths or bumps that appear in the genital area, and sometimes form a cauliflower-like shape.1

Scientists have identified more than 100 types of HPV, most of which are harmless. About 30 types are spread through sexual contact. Some types of HPV that cause genital infections can also cause cervical cancer and other genital cancers.2

Footnotes:
1. excerpt from HPV: DSTD
2. excerpt from Human Papillomavirus and Genital Warts, NIAID Fact Sheet: NIAID

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