Warts are not necessarily sexually transmitted. It is generally categorized into three types: sexual contact, indirect contact, and vertical transmission from mother to child. Warts are skin lesions caused by HPV virus infection, belonging to the sexually transmitted diseases, but the way of transmission is not necessarily through sexual behavior, the way of transmission is mainly divided into three kinds. 1. direct transmission: also called direct contact transmission, through the patient with warts direct contact to spread. 2. Indirect contact, patients with condyloma acuminatum, warts broken, the use of towels, bath towels, toilet, personal clothing, etc., can be stored HPV virus, a short period of time, indirect contact with these unsterilized infected person’s belongings, indirect contact can cause infection. 3. Vertical transmission from mother to child, through the process of delivery of the fetus through the birth canal to the baby.