Source

DermNet — Postinflammatory hyperpigmentation

Reviewed by SkinKnowledgeBase Editorial TeamLast updated May 11, 2026

Quick Summary

DermNet reference defining PIH and explaining why inflammation can leave pigment behind.

Structured source facts
Source typemedical_reference

What Studied

Dermatology reference on postinflammatory hyperpigmentation.

Main Findings

The page explains pigment change after inflammation and supports acne-trigger context.

Why It Matters

This source anchors the Dark Spots from Acne Concern definition.

Original Source

Postinflammatory hyperpigmentation

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Source
DermNet — Postinflammatory hyperpigmentation
Quick Summary
DermNet reference defining PIH and explaining why inflammation can leave pigment behind.
What Studied
Dermatology reference on postinflammatory hyperpigmentation.
Main Findings
The page explains pigment change after inflammation and supports acne-trigger context.
Why It Matters
This source anchors the Dark Spots from Acne Concern definition.
Supports
question_how-do-i-fade-dark-acne-scars, concern_dark-spots-from-acne