PSI Barbering Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The correct answer is verruca. A verruca, commonly known as a wart, is caused by a viral infection (specifically, the human papillomavirus, or HPV) that can spread from one location to another on the body, especially through breaks or scratches in the skin. This tendency for the virus to spread along imperfections in the skin highlights the importance of avoiding touching warts and maintaining good hygiene practices to reduce transmission.

While keratomas, often referred to as benign skin growths, do not exhibit the same infectious properties and typically do not spread in this manner, fungi can also cause skin infections, but they typically propagate through direct contact or specific environmental conditions rather than spreading from one scratch or lesion. The term "fungus" refers to a broader category of organisms, including molds and yeasts, which behave differently compared to viral infections. Therefore, while warts can be contagious, the focus on verruca specifically captures the mechanism of spread mentioned in the question.