Acne vulgaris is a common disease of which skin structure?

• A. Sweat gland
• B. Sebaceous gland
• C. Hair follicle
• D. Dermis

Answer: (B)

Acne vulgaris centers on the sebaceous glands within the hair-bearing skin. These glands produce sebum, and hormonal influences can drive increased sebum production. When sebum combines with shed skin cells, it can clog the hair follicle, forming a comedone. The blocked follicle creates an environment where bacteria like Propionibacterium acnes can thrive, leading to inflammation and the classic pimples of acne. Sweat glands aren’t involved in acne, and while hair follicles are part of the same unit, the sebaceous gland’s activity is the key factor in acne development, making it the most accurate choice.