Among the most common sexually transmitted infections are genital warts. At some point in their lives, most sexually active individuals will contract at least one type of human The moist tissues of the genital area are affected by genital warts. Their appearance can resemble small, flesh-colored bumps or cauliflower-like growths. Warts are often too small to be visible in most cases. Genital warts can be caused by some strains of HPV, while cancer can be caused by others. There are certain strains of genital HPV that can be protected against by vaccines.papillomavirus (HPV), the virus that causes genital warts.