The main way to prevent warts is to avoid contact with the human papillomavirus (HPV) that causes warts. If you are exposed to this virus, you may or may not get warts, depending on how susceptible you are to the virus.
Tips on avoiding the human papillomavirus
Avoid touching warts on yourself or others.
Don't share razors, towels, socks, or shoes with another person. Someone with no visible warts can still be carrying the virus.
Avoid walking barefoot on warm, moist surfaces where the wart virus may be alive. Wear shower shoes when using public showers, locker rooms, or pool areas.
Keep your feet dry. If your feet sweat heavily, wear socks that absorb moisture or wick it away from the skin.
Avoid irritating the soles of your feet. Warts grow more easily if your skin has been injured or broken in some way.
Tips on preventing warts from spreading
Keep warts covered with a bandage or athletic tape.
Don't bite your nails or cuticles, as this may spread warts from one finger to another.