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Why Pimples, Spots and Blemishes Leave Dark Marks: Post-Inflammatory Hyperpigmentation

Why Pimples, Spots and Blemishes Leave Dark Marks: Post-Inflammatory Hyperpigmentation

Dark marks after spot and blemish prone skin are often post-inflammatory hyperpigmentation (PIH), created when inflammation stimulates excess pigment production. PIH is flat and differs from indented or raised spot and blemish prone skin scars. It is more common and often more persistent in deeper skin tones. The priorities are controlling new spot and blemish prone skin, preventing picking and irritation, and using daily sun protection.

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What Causes Pimples, Spots and Blemishes? Hormones, Sebum and Inflammation

What Causes Pimples, Spots and Blemishes? Hormones, Sebum and Inflammation

Pimples, Spots and Blemishes form when several processes converge: increased or altered sebum, abnormal shedding that blocks follicles, inflammation, hormonal signalling and changes in the follicular microbial environment. Genetics and treatment tolerance also matter. Because spot and blemish prone skin is multifactorial, effective care often combines targeted treatment with a routine that protects the skin barrier.

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