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.
ByHealthwise Staff Primary Medical ReviewerKathleen Romito, MD - Family Medicine Adam Husney, MD - Family Medicine Martin J. Gabica, MD - Family Medicine Specialist Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Kathleen Romito, MD - Family Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine