CHSU Discovery

Abstract

• Post-Inflammatory Hyperpigmentation (PIH): a persistent
hyperpigmentation skin condition that develops after inflammation
or injury, caused by excess melanin production and/or deposition
during the healing process
• Despite the chronicity and visibility, PIH lacks physical symptoms and
is therefore often categorized as a cosmetic concern, which
undermines the documented effects on self-confidence, self-esteem,
and overall quality of life.
• With 90% of PIH occurring in Fitzpatrick Skin Types III–VI, patients
with darker skin are disproportionately affected and more likely to
experience underrecognition of the true clinical and psychosocial
burden experienced.1
• Among nearly 10,000 individuals reporting ≥1 pigmentary disorder,
only 42.9% had received a physician diagnosis, highlighting
significant underrecognition and associated psychosocial burden.2
• Given the persistence, visibility, and disproportionate impact on
skin of color populations, PIH should be recognized not merely as a
cosmetic sequela but as a condition with meaningful psychosocial
and health equity implications.
• This review examines the biological, clinical, and systemic factors
that contribute to this underrecognition and perpetuate inequitable
dermatologic outcomes.