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What Causes Acne?

Acne usually occurs on the face, but sometimes on the neck, the ears, the chest, and the back; and very rarely it may extend all the way down the lower part of the back and to the outer surface of the upper arms.

Acne occurs when the sebaceous glands in the skin begin to overdevelop and produce too much sebum, causing the skin to increase in oiliness. This excess oil and over-abundant tissue cells block pores to cause pimples and blackheads which can become infected or burst and cause inflammation.

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