Folliculitis

Folliculitis — an inflammation of the hair follicles that appears as small red or pus-filled bumps, often resembling acne, and is commonly triggered by bacterial or fungal infection, friction, or blocked follicles. It can occur anywhere hair grows, including the scalp, face, chest, back, buttocks, and legs. Most mild cases resolve on their own, though recurrent or widespread flare-ups may need professional evaluation.

Key points

  • Common triggers include shaving, tight clothing, sweat, occlusive products, and hot tubs where bacteria like Pseudomonas can thrive.
  • Bacterial folliculitis is frequently linked to Staphylococcus aureus, while fungal or yeast-driven forms are often caused by Malassezia.
  • Gentle cleansing, loose breathable clothing, and avoiding shaving over irritated areas can help reduce mild flare-ups.
  • Recurrent, painful, or spreading folliculitis should be assessed by a healthcare professional, as it may require targeted antimicrobial treatment.

Frequently asked

Is folliculitis the same as acne?

No; although both cause small bumps, folliculitis is inflammation or infection centered on the hair follicle, whereas acne involves clogged pores driven by oil, dead skin, and specific acne bacteria. They can look similar and sometimes coexist.

Can I prevent folliculitis from shaving?

Shaving in the direction of hair growth, using a clean sharp blade, and applying a gentle lubricating product can lower friction and irritation. Letting the skin recover between shaves also helps reduce follicle inflammation.

Related topics

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.

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