Small, itchy, sometimes sore bumps along the jawline a day after shaving. A crop of red spots in the underarms after waxing. A dark dot on the leg with a hair coiled underneath. These are all ingrown hairs, and on the beard area they have a medical name: pseudofolliculitis barbae, better known as razor bumps.
They are among the most common reasons men see a dermatologist about their beard, and many women deal with them on the underarms and bikini line. The good news: most bumps are preventable, and the stubborn ones can be treated.
What razor bumps look like
- Small, firm bumps the colour of your skin, or red or dark, where hair has been removed.
- Usually on the jawline, chin and neck in men; the underarms, bikini line and legs in women.
- They may itch, sting or feel tender, and can bleed when you shave over them.
- Sometimes you can see the hair curled into the bump or lying just under the surface.
- Some bumps fill with pus and look like pimples.
- On brown skin they often leave dark marks, and in people prone to them, firm raised scars.
Why they happen
When a hair is shaved, the cut leaves a sharp, angled tip. A curly or coarse hair growing out of the follicle can curve back and pierce the skin next to it, or turn sideways and grow into the wall of its own follicle before it reaches the surface. The skin treats the hair as a foreign body and reacts with inflammation: that’s the bump.
Things that make it more likely:
- Curly or coarse hair, which tends to curl back as it grows.
- Close shaves: shaving against the grain, stretching the skin, or several passes with a multi-blade razor cut the hair below the surface.
- Waxing, threading, plucking and epilators, which can leave broken hairs or distort the follicle, so the regrowing hair takes a wrong turn.
- Dry shaving, blunt blades and rough skin.
- Tight clothing that rubs freshly shaved skin, such as collars and underwear elastics.
Shaving habits that prevent most bumps
The American Academy of Dermatology’s advice, adapted for everyday use:
- Soften the hair first. Shave at the end of a bath, or hold a warm, damp cloth on the area for a few minutes. Never dry shave.
- Use a moisturising shaving cream or gel and let it sit for a minute or two.
- Shave with the grain, in the direction the hair grows, with short strokes. Go over each area no more than twice, and don’t press hard.
- Don’t stretch the skin while you shave. It lets the hair spring back below the surface.
- Use a sharp blade. Replace disposable blades every five to seven shaves and store the razor dry.
- Consider leaving a little stubble. A beard trimmer or electric shaver that leaves about a millimetre of hair is gentler on bump-prone skin than a very close blade shave.
- Finish gently. Rinse with lukewarm water, use a cool compress, and then a fragrance-free moisturiser. Stop any aftershave that burns or stings.
- If hair grows in several directions, brushing the beard daily in one direction helps train it.
If bumps are bad, the most reliable fix is to stop shaving for a few weeks. As the trapped hairs grow out and free themselves, the bumps usually settle within about a month.
What not to do
- Don’t dig hairs out with tweezers, needles or nails. It injures the follicle, invites infection and leaves marks.
- Don’t squeeze the bumps like pimples.
- Don’t scrub hard. Harsh scrubs inflame the skin; a gentle exfoliating cream or wash used a few times a week is enough.
- Don’t use steroid or “fairness” combination creams on the bumps or marks without a prescription. They thin the skin and can cause acne-like eruptions. More in our post on steroid creams on the face.
- Don’t shave over active, inflamed bumps if you can avoid it; give the area a break.
Women: underarms, bikini line and legs
Ingrown hairs aren’t only a beard problem. Shaving, waxing and epilating the underarms and bikini line often cause bumps, itch and, over time, dark patches. The same rules help: soften the hair, shave with the grain, use a fresh blade, avoid tight clothing right after hair removal, and don’t pick. Repeated friction and ingrown hairs are one reason underarms darken; see dark neck and underarms.
Is it razor bumps or something else?
- Bacterial folliculitis gives pus spots around hairs, sometimes spreading after shaving with a shared or dirty razor.
- Acne comes with blackheads and whiteheads and isn’t limited to shaved areas; see acne.
- Fungal infection of the beard can cause itchy, scaly patches and pustules, and needs antifungal treatment.
- Keratosis pilaris gives small, rough bumps on the arms and thighs whether or not you shave; see keratosis pilaris.
When to see a dermatologist
See a dermatologist if:
- bumps keep coming back despite better shaving habits;
- they leave dark marks that aren’t fading, or raised, firm scars;
- bumps are painful, full of pus or spreading;
- you need to shave closely every day for work and the bumps won’t let you;
- you aren’t sure what the bumps are.
Seek care quickly for a painful, swollen lump, spreading redness or a fever.
How a dermatologist treats razor bumps
At the consultation, the doctor examines the area, often with a dermatoscope, to confirm ingrown hairs and rule out infection or acne. Depending on what’s found, treatment may include:
- Calming active bumps: a short course of a mild steroid or antibiotic cream, or antibiotic tablets when there’s a lot of inflammation, used as prescribed.
- Creams that keep the follicle openings clear, such as a retinoid or benzoyl peroxide, to reduce new bumps.
- Gentle chemical peels in some cases, to smooth the skin and help marks fade; see chemical peels.
- Treating dark marks with sunscreen, creams and, if needed, peels or lasers suited to brown skin; see dark spots.
- Laser hair removal for areas where bumps keep returning. With fewer, finer hairs, there’s less hair to grow back in. Settings are chosen for your skin type, and inflamed bumps are calmed first. Men often treat the neck and cheek line while keeping the beard shape they want; see laser hair removal in Rajkot and unwanted hair.
For more on a simple daily routine for shaving skin, see our men’s skincare guide.
The short version
Razor bumps are ingrown hairs: a sharp-tipped, curly hair grows back into the skin after shaving, waxing or plucking, and the skin reacts. Soften the hair, shave with the grain with a sharp blade, don’t stretch the skin, consider leaving a little stubble, and never dig hairs out. If bumps keep returning or leave marks or scars, a dermatologist can calm them, treat the marks and, where it suits, reduce the hair with laser.
