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What is acne?

 

Acne is the inflammation of sebaceous (oil producing) glands of the skin.It is a common skin disorder affecting mostly young people, which peaks around age 17-19 and usually resolves by the mid to late 20's.


What causes acne?

  • Increased production of male sex hormones (androgens) during puberty stimulate the sebaceous glands to produce more sebum.

  • Increased production of sebum makes the opening of the sebaceous glands narrower, preventing the sebum from escaping. This causes the glands to swell, resulting in comedones (whiteheads) and blackheads (oxidised sebum).
  • A common skin bacteria (Propionebacterium acnes) feeds on the sebum and produces waste products and fatty acids, which irritate and inflame the sebaceous gland. This results in redness and pimples.

Acne Scarring

Post Inflammatory Hyperpigmentation

This is redness or darkening of the skin around an acne lesion and tends
to last between 6-18 months, depending on the skin type.

 

 


Loss of tissue

  • Ice pick scarring - usually on the cheeks.
  • Depressed scarring - soft or hard with rolled edges.
  • Atrophic scarring - soft with a wrinkled base
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