Warts are pretty harmless growths on the hands and feet. Don’t bother popping them because they’re not whiteheads or blisters. They just look like blisters or a stiff cauliflower. Warts come from viral growth, meaning they are contagious. They’re easily distinguishable because they’re either lighter or darker than the rest of the skin. If located in high-friction sections of the body, warts can be burn and itch.