How Pimples Form

Picture of a pimple forming in a hair shaft

Pimples form when dead skin cells mix with excess oil (sebum). This mixture plugs the pore, causing swelling. Bacteria can grow in the mix and lead to infection and pus.

Credits

ByHealthwise Staff
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Specialist Medical ReviewerAlexander H. Murray, MD, FRCPC - Dermatology
Last RevisedFebruary 3, 2011
By: Healthwise StaffLast Revised: February 3, 2011
Medical Review: Kathleen Romito, MD - Family Medicine
Alexander H. Murray, MD, FRCPC - Dermatology

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