What is the alternative name for a verruca?

A verruca is commonly known as a wart. This term refers specifically to benign, epithelial tumors that are caused by human papillomavirus (HPV) infection. Warts can appear on various parts of the body and are typically characterized by their rough, raised appearance and can sometimes have a cauliflower-like texture. Understanding that a verruca is a type of wart is essential in both medical and aesthetic fields, as it helps in identifying appropriate treatments and distinguishing it from other skin conditions or abnormalities.

The other options, while they may also refer to skin conditions, do not accurately describe a verruca. For instance, the term "fungus" does not apply as warts are viral in nature, "blister" refers to fluid-filled sacs typically caused by friction or burns, and "callus" denotes thickened skin that develops in response to repeated pressure or friction. Each of these terms describes different skin issues, which highlights the importance of clear terminology when discussing dermatological conditions.