What is a blister also known as?

A blister is medically referred to as a vesicle. This term specifically describes a small fluid-filled sac that forms on the skin, often as a result of friction, burning, or other forms of skin irritation. Vesicles can appear anywhere on the body and are typically characterized by their transparent, liquid-filled appearance. They serve as a protective barrier for the underlying skin and can help in the healing process by preventing further irritation or infection.

The other terms have different meanings in the medical context. An abscess refers to a collection of pus that can form in response to infection; it is typically characterized by redness, swelling, and pain. A protection layer is a general term but does not specifically refer to a skin condition or lesion. A pustule is a small elevation of the skin that contains pus, differing from a vesicle, which contains clear fluid. Understanding these distinctions is crucial in the field of healthcare, particularly in identifying and addressing skin conditions.