Yes, many warts are contagious. Warts can be transmitted through direct skin contact or indirectly, e.g., via shared towels or floors in swimming pools. Early treatment prevents them from spreading further. Infectious warts include: common warts (verrucae vulgares), plantar warts (verrucae plantares), flat warts (verrucae planae), genital warts (condylomata acuminata), thread warts (verrucae filiformes), and molluscum contagiosum.