Common warts that break and bleed may be contagious. Common warts are a relatively common dermatologic condition that is a benign proliferative disease caused by the human papillomavirus. They appear as hardened papules with a rough surface to touch. They can occur anywhere on the body and are usually more common on the hands and feet. When a wart breaks and bleeds, the blood may contain a large number of virus particles, and direct contact with the bleeding area can cause an infection that can lead to the formation of new warts. Sharing towels and other personal items with someone who has warts can also lead to the spread of warts. If the warts are broken and bleeding, the patient should go to the regular hospital in time, and take targeted measures under the guidance of professional doctors.