Causes of acne

Written by STHLM !DERMI5T8xc
On the causes of acne (a bit technical):

>someone said that it's a myth that acne is caused by dirty skin (and that it's all hormones)

Excessive sebum production, regardless of if it is caused by sex steroids/growth factors or something else, is necessary for acne to develop.

If this was the only factor, however, then everyone who had excessive sebum production/oily skin would automatically develop acne.

Excess sebum production combined with excessive local skin peeling (desquamation) form plugs in the sebaceous ducts (microcomedones), which can later evolve into both inflammatory lesions (IL, different kinds of ordinary pimples) and non-inflammatory lesions (NIL - comedones: blackheads and whiteheads.)

What the microcomedo evolves to depends mainly on the amount of P. acnes inside of the plug, and the resulting amount of "proinflammatory" substances that is produced by the bacteria as they grow.

MULTIFACTORIAL PATHOGENESIS.

Simple English: Acne appears when your skin creates too much fat, and when the skin is peeled off a lot right next to your pores. This creates a gunk that blocks the pores. Bacteria then eats this gunk and creates bad chemicals that your skin doesn't like. Your skin gets red, swollen, and painful.