What should you know about bumps on a shaved head?

Small, red, tender bumps that appear soon after shaving can be irritation or folliculitis, an inflammation around a hair follicle. A curved or tightly cut hair can grow back into the skin and form an ingrown hair, sometimes with itching or a pus-filled tip. Razor bumps are more likely when hair is cut very close, especially if it is coarse or curly. Firm, rough bumps that were present before shaving may have another cause, such as keratosis pilaris. The location, timing, tenderness, drainage, and whether the bumps recur help a clinician distinguish these patterns.

Pause close shaving until the skin settles. Wash gently with lukewarm water and a mild cleanser, then pat dry; avoid picking, squeezing, or digging for trapped hairs. Use a clean, warm compress for several minutes if the area feels sore. When you resume shaving, use a clean tool, shaving gel, light pressure, and strokes in the direction of hair growth. Avoid sharing razors and avoid products that sting or heavily perfume the scalp. If bumps keep returning despite changing technique, a dermatologist can discuss options such as laser hair removal and check whether another condition is contributing.

Arrange a dermatology assessment if the bumps are spreading, repeatedly draining, leaving dark marks or scars, or failing to improve after you stop shaving. Seek prompt care for rapidly increasing redness or swelling, severe pain, warmth, fever, or feeling unwell, because these can signal a spreading infection. A bump that bleeds without clear injury, changes noticeably, or remains in one place should also be examined rather than repeatedly treated at home.

Ask: Do these bumps fit folliculitis, ingrown hairs, or razor bumps? Should I change how closely I shave? Would a medicated wash or another treatment be suitable for my scalp? How can I reduce the chance of scarring or recurring bumps?