Recurring bumps where you shave are usually hairs growing back into the skin. Medical Director Dr Sin Yong treats the inflammation, the marks and the cause, at Pacific Plaza, Orchard Road.
WhatsApp to Enquire →Key facts ↓Razor bumps, or pseudofolliculitis, form when a shaved, curved hair grows back into the skin and triggers inflammation, most often on the beard area and bikini line. Gentler shaving and topical care help, but reducing hair density with laser hair removal addresses the cause. IN Eternity Clinic uses the Lutronic Clarity II, with 1064 nm for darker skin.
Shaving cuts each hair at an angle, leaving a sharp tip. In curly or coarse hair, that tip can curve back and re-enter the skin as it grows (extrafollicular penetration), or retract below the surface after a very close shave and grow sideways through the follicle wall (transfollicular penetration). Either way, the immune system reacts to the hair, producing tender bumps, pustules and later dark marks or small scars.
Infection is not the main problem, although bumps can become infected if picked. Folliculitis from bacteria or yeast can look similar, as can acne on the jawline, so Dr Sin Yong examines the pattern before choosing treatment.
Beard area and neck. Most common in men who shave daily, especially along the jaw and neck where hair grows in several directions. Growing a short beard or switching to clippers that leave a little length often settles bumps within weeks. Facial laser is planned conservatively, and beard-line shaping is mapped with you.
Bikini line and groin. Shaving and waxing both cause ingrown hairs here, and tight underwear adds friction. The skin is often darker, so marks are common and settings are adjusted. You can raise any preference about intimate-area treatment when you enquire. See Brazilian laser hair removal.
“A razor bump is a hair problem, not a skin problem. Reduce the hairs and the bumps usually follow.”
Laser energy is absorbed by melanin in the hair and travels down to the follicle, where heat damages the structures that regrow hair. Fewer, finer hairs mean fewer sharp tips to grow back in. The Lutronic Clarity II carries two wavelengths: 755 nm Alexandrite for lighter skin and finer hair, and long-pulsed 1064 nm Nd:YAG, which absorbs less in the skin’s own pigment and penetrates deeper, so it is the usual choice for darker skin and razor bumps. See laser hair removal.
Hair grows in cycles, and only actively growing hairs respond, so treatment is a course spaced weeks apart. The accurate expectation is a lasting reduction in hair rather than complete hairlessness; some fine regrowth is normal.
Laser hair removal feels like a quick snap of a rubber band, with a brief warm sting; coarse beard and bikini hair tends to feel stronger at first sessions and lighter as the hair thins. Cooling is built into the Clarity II, and numbing cream can be used for sensitive areas. Inflamed bumps are calmed before laser, as treating over active inflammation is uncomfortable and raises the risk of marks.
Day 0: assessment of skin type and hair, advice on shaving, and treatment of active bumps; laser may start the same day if the skin is calm. Shave, do not wax or pluck, before laser.
Days 1–3: after laser, redness and small raised follicles settle within hours to a day or two. Avoid hot showers, saunas and sun on the area.
Week 1: treated hairs start to shed over one to three weeks; this can look like regrowth but they slide out easily.
Weeks 2–4: fewer new bumps for most people; dark marks fade slowly with sunscreen and topical care.
Review: the next laser session is usually four to eight weeks later, and progress is reviewed at each visit.
Pause shaving for a few weeks if you can, then shave with a single-blade razor in the direction of hair growth, without stretching the skin. A gentle salicylic or glycolic acid product a few times a week helps. Avoid picking. If bumps are painful, widespread or leave dark marks, see a doctor.
Only if the hair loop is clearly visible above the skin, and then by gently lifting the tip with a clean, sterile tool rather than pulling it out by the root. Plucking makes the next hair more likely to grow in. Never dig under the skin, which risks infection and scarring.
Most people need a course of about six to eight sessions spaced four to eight weeks apart, but this varies with hair colour, coarseness, area and skin type. Many notice fewer bumps after the first few sessions. Maintenance is occasionally needed later.
Yes, with the right wavelength and settings. The long-pulsed 1064 nm Nd:YAG on the Clarity II absorbs less in the skin’s own pigment, which makes it more suitable for darker skin. Recent tanning raises the risk of burns and marks, so sun exposure is discussed before each session.
Cost depends on the area treated, such as the beard line, neck or bikini line, the number of laser sessions your hair and skin type need, and whether dark marks or inflamed bumps need separate treatment first. Dr Sin Yong explains the plan and its cost after assessing your skin and hair.
Usually, yes, once new bumps stop forming. Post-inflammatory pigmentation fades over months, faster with daily sunscreen on exposed areas and topical brightening care. Gentle laser may be added for stubborn marks. Raised or indented scars are different and need their own plan.
IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, Singapore 228210. By appointment with Medical Director Dr Sin Yong. Monday to Saturday, 11am to 8pm. WhatsApp or call +65 8815 3008.
These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.