Warts are extremely contagious and can be easily spread to others, as well as different parts of your own body, so always keep them covered during treatment. Plantar warts show up on the bottom of your foot and grow inward rather than outward. They can be quite painful. Always wear flip-flops if you shower at the gym! Genital warts…well, you know where those show up. The HPV vaccine targets specific types of genital warts that cause cervical cancer but won’t protect against other types. If you think you may have plantar or genital warts, you definitely need to see a doctor.