What should you know about ingrown hairs on head?

On the scalp or another shaved part of the head, an ingrown hair can cause a small itchy, tender, or red bump. Clippers, close shaving, helmets, hats, sweat, and rubbing may irritate follicles. Several similar pustules may indicate folliculitis. A firm or enlarging lump, a crust that does not heal, or a spot causing hair loss should not be assumed to be an ingrown hair; examination can clarify the diagnosis.

Stop close shaving or trimming over the affected spot until it settles. Cleanse gently, rinse away sweat after activity, and avoid scratching, squeezing, or trying to extract a deeply embedded hair. Keep hats, helmets, clippers, and pillowcases clean, without sharing grooming tools. Do not apply irritating products to broken skin. If the issue follows repeated close hair removal, discuss a different technique or laser hair removal where appropriate.

Seek prompt care for rapidly worsening pain, warmth, swelling, spreading redness, heavy drainage, fever, or feeling unwell. Arrange a routine skin review if the bump remains, returns in the same place, scars, bleeds, or is associated with a patch of hair loss. A clinician may need to inspect the scalp closely and choose treatment based on the cause.

Ask whether the lesion fits an ingrown hair or folliculitis, whether your grooming tool or product is contributing, and how to clean or replace equipment safely. Mention scalp conditions, medications, drainage, and any change in nearby hair growth.