Warty nevus on the top of the head has the possibility of cancer. Most warty nevus are benign skin tumors that are usually not cancerous, and only a very small number of them have the possibility of becoming cancerous. Verrucous nevus, also known as epidermal nevus, usually appears as brown or black warts, mostly in the form of papillae, varying in size and shape. Verrucous nevus is a congenital warty growth of the epidermis, mostly seen in children, and can develop in both sexes. Generally there are no conscious symptoms, when clinical symptoms appear, such as warty nevus become bigger, itching, pain and other symptoms, need to go to the hospital to check whether there is cancer. Most verrucous nevi are benign skin tumors and generally do not become cancerous, but only a very small number of them may become cancerous. Depending on the size and texture of the warts, there are different treatment methods. Smaller warts can be treated with physical therapy, such as liquid nitrogen cryotherapy, laser therapy, etc. Larger warts are recommended to be surgically removed. If you have a warty nevus on the top of your head, it is recommended that you go to a regular hospital in time and be treated under the guidance of a doctor.