Warts are caused by the human papillomavirus (HPV), which has multiple strains and can infect various body parts

https://www.scribd.com/document/778067965/The-Psychological-Impact-of-Having-Warts-and-How-to-Cope-189208

Warts are caused by the human papillomavirus (HPV), which has multiple strains and can infect various body parts