Barber Practice State Board Practice Exam 2025 - Free Barber State Board Practice Questions and Study Guide

Verruca, commonly known as warts, is a type of skin growth caused by a viral infection. Specifically, these growths are typically the result of the human papillomavirus (HPV), which induces hyperproliferation of the skin cells. The virus leads to the characteristic thickening of the epidermis, resulting in the raised and rough surface of verrucae. Understanding that verrucae are viral in origin is essential, as it influences treatment approaches and prevention strategies in a barbering context, especially regarding sanitation and client interaction.

The other options—fungi, bacteria, and allergens—do not cause verrucae. Fungi can lead to different skin conditions such as ringworm, bacteria can cause infections and pustules, and allergens may trigger skin reactions such as dermatitis, but none are responsible for the formation of verrucae. Recognizing the viral nature of verruca is key for barbers in maintaining a safe and hygienic environment for their clients.