Massachusetts State Board Esthetics Practice Exam 2025 – All-in-One Guide to Certification Success!

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What is the typical appearance of a pustule?

Clear fluid-filled sac

Small blister with pus at the center

The typical appearance of a pustule is characterized by a small blister filled with pus at its center. This pus is usually a thick, yellowish or whitish substance made up of dead cells, bacteria, and immune cells, which is indicative of infection or inflammation.

Pustules are often associated with conditions such as acne, where they form when hair follicles become clogged with oil, dead skin cells, and bacteria, leading to inflammation. The pus-filled nature of a pustule distinguishes it from other types of lesions, such as clear fluid-filled sacs or solid lumps, which have different compositions and causes. Understanding this particular appearance is crucial for estheticians, as it guides the approach for treatment and management of various skin conditions.

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A flat, pigmented area

An inflamed, solid lump

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