This issue is answered by the contracted expert from Pule YunKang, Associate Chief Physician Dawei from the Dermatology Department of the Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine. Common warts generally do not have obvious subjective symptoms. If there is occasional pain, consider whether it is often due to scratching. Ah. Summoning magic. Which causes minor infections. Common warts are caused by Human Papillomavirus (HPV) infection. Mainly through direct contact. Or it spreads on an economic basis. The virus enters through tiny breaches in the skin or mucous membranes. Ah, after entry. After infection, it causes a series of changes resulting in the appearance of benign growths on the skin. People with immunodeficiency. As well as those with injuries. Are more likely to develop this condition. It is noted that it can occur on any part of the body. But it is most commonly seen on the hands. Hand injuries or breaks due to crystal handling are the most common triggering factors. To ask questions to the experts for free, search for Pule YunKang.