Red Seal Cosmetology Practice Exam

What is a bulla?

1. A small blister

2. A large blister

3. A type of pimple

4. A crack in the skin

The correct answer is: A large blister

Bulla is a type of skin lesion that is typically larger than a blister. It occurs when fluid accumulates under the top layer of skin, creating a raised and round shape. This is different from a small blister, which is typically caused by friction or burns, and a bulla may occur due to medical conditions such as eczema or viral infections. A bulla is not a type of pimple, as pimples are caused by clogged pores and are much smaller than a bulla. A crack in the skin, or fissure, does not share the same physical characteristics as a bulla.