• Having a weak immune system due to various reasons such as HIV infection, immunosuppressive drugs, etc.
• Warts are most commonly found in children and young adults.
• Walking barefoot on moist surfaces such as in public showers, locker rooms, and swimming pool areas.
• Sharing razors, towels, and other personal items with an infected person.
• Biting one's nails or cuticles.
• Wearing closed or tight shoes that lead to sweaty feet.