The long corns on the hands are very rare in clinical practice. Because corns, it is a frictional disease, usually occurs in the feet, because the feet will repeatedly rub when walking. The corns on the hands are probably just common warts. Verruca vulgaris is caused by human papillomavirus (HPV) infecting the skin. It will appear as skin colored papules on the skin, gradually increase, and eventually become verrucous changes. Moreover, it has a certain degree of infectivity, which can be transmitted through direct or indirect contact. In terms of treatment, for a small number, it can be directly removed by freezing or laser, while for a large number, it is recommended to use immune enhancer at the same time.
