Post-inflammatory hyperpigmentation (PIH) begins its development when an injury causes skin inflammation. The injury could be a cut, scrape, rash, burn, or even a pimple. This inflammation can trigger the skin to produce too much melanin. (Melanin is the protein in the skin that gives the skin its color.)
Now the excess melanin darkens and discolors the wounded area. And even after the wound has healed, the discoloration can remain. PIH is more common in those with darker skin tones.
PIH often occurs after an inflamed acne lesion has healed. The more inflamed or severe a breakout, the larger and darker PIH macules tend to be. But PIH macules can follow even relatively minor pimples and papules, especially if you tend to be susceptible to this type of skin discoloration.
Popping a pimple, or picking at the scab, increases the chance of developing PIH. It can also increase your chances of scarring. It's always best to leave your blemishes alone so they can heal naturally.
Who Can Get Post-Inflammatory Hyperpigmentation?
Post-Inflammatory Hyperpigmentation FAQs
