What should you know about back folliculitis?

The bumps may itch, sting, feel tender, or form a crust. They can be scattered across the upper or lower back, especially where clothing, sports equipment, backpacks, or bed linen rub against skin. A deeper inflamed follicle may become a painful nodule. Folliculitis is a condition of the follicle, so it can look different from ordinary acne even when both produce pimple-like lesions. Ingrown hairs can create a similar appearance, particularly after close hair removal.

Shower after heavy sweating, change out of damp clothing, and wash the area gently without scrubbing or picking. Choose loose, breathable fabrics and clean items that press against the back. Pause shaving or waxing over active bumps; when restarting, use a clean tool and avoid a very close shave. A clinician may recommend an antiseptic wash or treatment aimed at a bacterial or yeast trigger. Do not apply leftover antibiotics or steroid creams without advice. See the pages on [Folliculitis](/conditions/folliculitis/), [Ingrown Hairs](/symptoms/ingrown-hairs/), or [Skin Bumps](/symptoms/skin-bumps/) for related explanations.

Arrange medical care if redness is spreading, pain is increasing, lumps are deep, drainage is extensive, or you feel feverish or unwell. Assessment is also sensible when the rash keeps returning, leaves scars, or does not settle after removing friction and sweat triggers. A clinician may examine the pattern and decide whether testing or prescription treatment is needed.

Ask whether the bumps fit folliculitis, acne, or ingrown hairs; whether a swab or other test is useful; which wash is suitable for your skin; and how to prevent recurrence during exercise, shaving, or work with a backpack.