Johns Hopkins ABX Guide
Genital/Anogenital Warts
PATHOGENS
- The most common viral sexually transmitted infection.
- All anogenital warts are caused by human papillomavirus (HPV) infection.
- Most (>90%) anogenital warts are benign, caused by HPV subtypes 6 and 11, which are "low-risk" (for malignancy) HPV subtypes.
- HPV subtypes 16 and 18, the most common "high-risk" subtypes, cause ~70% of cervical cancers but usually do not cause warts.
- These other "intermediate risk" HPV subtypes, including 16, 18, 31, 33, and 35, are associated with high-grade squamous intraepithelial neoplasia (HG-SIL) and are occasionally found in warts, particularly in persons with concurrent HIV infection.
- For additional non-genital wart information, see the HPV module.
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Last updated: March 7, 2023
Citation
Melia, Michael. "Genital/Anogenital Warts." Johns Hopkins ABX Guide, The Johns Hopkins University, 2023. Johns Hopkins Guides, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540244/all/Genital_Anogenital_Warts.
Melia M. Genital/Anogenital Warts. Johns Hopkins ABX Guide. The Johns Hopkins University; 2023. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540244/all/Genital_Anogenital_Warts. Accessed September 21, 2023.
Melia, M. (2023). Genital/Anogenital Warts. In Johns Hopkins ABX Guide. The Johns Hopkins University. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540244/all/Genital_Anogenital_Warts
Melia M. Genital/Anogenital Warts [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2023. [cited 2023 September 21]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540244/all/Genital_Anogenital_Warts.
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