Genital warts are just skincoloured bumps that can appear on your genitals. They can be on the penis, around the vagina, around the bottom. They’re usually noticed by the person that has them because they might be itchy or bleed or they notice a bump. They’re caused by the human papillomavirus or HPV. There are over 100 different types of HPV that we know about. Some cause warts on the hands, others cause warts on the body, some cause warts on the genitals. Usually, the types that cause warts on the hands don’t cause warts elsewhere,.