How are hair follicles related to pimples?

Elevated hormones stimulate the sebaceous glands (glands that are attached to hair follicles or pores) to produce greater amounts of sebum, or oil. Acne forms when a hair follicle or pore becomes plugged with the sebum and dead skin cells. Bacteria that normally live on your skin (called P. acnes) may infect the plug, causing the pore to become inflamed and swollen, resulting in a pimple.

There is a type of acne, called pomade acne, that occurs on the scalp, forehead, and temples where pomade on the hair comes into contact with the skin. Pomade acne usually consists of comedones, with perhaps a few papules and pustules.
Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Each hair follicle is connected to a gland that produces oil, which moves up the follicle. The oil can mix with dead skin cells and block the opening of the follicle, attracting bacteria and leading to formation of a pimple. Watch the process in this animation.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.