---
title: "Whiteheads — Glossary | School of Dermatology"
url: https://schoolofdermatology.com/glossary/whiteheads
description: "Learn what whiteheads (closed comedones) are, why they form, how they differ from blackheads, and the most effective treatments to clear them."
lang: en
---

Glossary

# Whiteheads

WYT-hedz

## Definition

Whiteheads (closed comedones) are a type of non-inflammatory acne that appears as small, flesh-colored or white bumps on the skin's surface. They form when a pore becomes completely blocked by a mixture of dead skin cells, sebum, and sometimes bacteria, with a thin layer of skin covering the pore opening. Unlike blackheads (open comedones), the trapped material in a whitehead is not exposed to air, so it does not oxidize and remains white or skin-colored. Whiteheads are most common on the face — particularly the forehead, chin, and cheeks — but can appear anywhere on the body. They are often a precursor to more inflammatory types of acne if bacteria begin to proliferate within the clogged pore. Effective treatments include salicylic acid (BHA), retinoids, and AHAs, which help prevent pore clogging by promoting cell turnover. Avoid attempting to squeeze whiteheads, as this can push bacteria deeper and cause inflammation or scarring.

## Related Terms

Comedone: https://schoolofdermatology.com/glossary/comedone
Comedogenic: https://schoolofdermatology.com/glossary/comedogenic
BHA (Beta Hydroxy Acid): https://schoolofdermatology.com/glossary/bha-beta-hydroxy-acid
Retinoid: https://schoolofdermatology.com/glossary/retinoid

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