The rough growths described are warts, which are skin growths caused by HPV.
HPV stimulates the growth of the cells on the outer layer of the skin, forming warts. There are many types of HPV, some cause warts on the hands, others can affect the feet, face, genitals, and more.
HPV infections are very common and can be spread by skin-skin contact
A thorough skin assessment give you important information about potentially serious diseases, especially in older adults who are vulnerable to skin breakdown.