Foundations

Keloid-prone skin: piercings, acne, surgery and aesthetic procedures, and how to lower the risk of the next one

Dr Ong Jin Khang · MMC 45245 · LCP holder · The Retreat Clinic, Setia Alam

If you or a close relative has ever grown a keloid, tell the doctor before any piercing, mole removal, laser, peel or injection, because the usual trigger is the skin injury itself. Keloid-prone skin cannot always be protected, but the risk can be lowered by choosing the procedure and the site with care, testing a small spot, caring for the wound afterwards, and acting at the first sign of thickening.

A quiet still life on pale linen in soft daylight: a clear silicone gel sheet, a pair of soft earlobe pressure clips and a plain white tube, no lettering, no people; a generated image, not a photograph of the clinic

On keloid-prone skin, the first question is not which treatment. It is whether this skin should be injured at all.

How do I know if my skin is keloid-prone?

Most people find out by accident. A piercing that swells into a hard bead, a vaccination mark that rose and stayed, a chickenpox or acne scar that grew thick instead of flat. Any of these counts as a signal, and so does a close relative who has had the same.

DermNet says keloids are more frequent in people with Fitzpatrick skin types III to VI, which covers many Malaysians, and that the upper chest, shoulders, ears and neck are especially prone. It also notes that keloids can follow minor injuries, and that a keloid may extend beyond the original wound. What a keloid is and why it comes back is covered in the companion article on recurrent keloids. This one is about the next injury.

Which procedures carry real risk, and which rarely do?

I would like to give you a ranked list with percentages. I cannot, and I would rather say so. The sources I checked name the triggers in general: DermNet lists trauma, burns, insect bites, surgery, cryotherapy, topical imiquimod, acne, shingles and immunisation. None of them gives a keloid rate for microneedling, peels, filler, anti-wrinkle injections, threads, laser or tattoo removal, so I will not quote one.

What can be said is what the clinic's own articles say. A history of keloid or thick, raised scars is on the list of reasons for caution in the articles on chemical peels, fractional CO2 laser and acne scars. The OndaPro article lists a tendency to keloid scars among the relative contraindications. The anti-wrinkle injection article, citing a 2026 review, lists keloidal scarring among its contraindications. And the label for an at-home LED device was not tested in skin prone to keloid scarring.

Reasoning from the mechanism, a deeper or more inflamed wound is a bigger ask of keloid-prone skin than a shallow one. That makes excision, freezing and ablative lasers the procedures to think hardest about. It also means a small procedure is not automatically safe. Mole removal leaves a wound, microneedling is a deliberate injury, and laser tattoo removal injures the skin repeatedly. None of these is forbidden. Each needs the history taken first.

The clinic does not offer fractional CO2 laser, thread lifts or laser hair removal, so those are outside what is done here.

Earlobe keloids after piercing: what to do in the first weeks

This is the commonest keloid story in Malaysia. The American Academy of Dermatology is blunt: the best way to prevent a keloid is to skip getting a piercing on any part of your ears. If you are keloid-prone and the ears are already pierced, or you decide to go ahead, the first weeks are where you can change the outcome.

The Academy advises watching the ear closely after a new piercing. If the skin on an earlobe starts to thicken, you may be able to prevent a keloid if you act quickly: remove the earring at the first sign of thickening and wear a pressure earring instead. Its wound-care advice includes washing with soap and water, keeping the wound moist with a hydrogel dressing, and using silicone gel or sheets for six months after scabbing.

Two details from the studies are worth knowing. In a series of 50 patients with keloids after cartilage piercing, infection followed in every one, and the authors concluded that cartilage heals slowly after infection and is more prone to keloid. In another series of 141 ear keloids, most sat on the back of the lobe and most jewellery had metallic backs, which the authors link to local inflammation. Neither study proves a rule for you. Together they point towards a clean piercing, a question about the jewellery backs, and prompt attention to a sore, swollen ear.

Acne on the chest, shoulders and neck

DermNet lists acne itself as a trigger, and the chest and shoulders are among the sites it names as especially prone. Every spot that is picked or inflamed is a small wound on a high-risk site.

So the acne comes first. Controlling it before it scars is the cheapest keloid prevention there is, and the sequence is set out in what should happen before any facial. Leave the spots alone, do not squeeze them, and ask for treatment of deep or persistent spots early. A raised scar that follows acne needs recognising before anything is done to it.

The questions a doctor asks before any procedure

The history counts as much as the exam. The questions include whether you have grown a keloid or thick scar before, where, and after what; whether a parent, brother or sister has; whether a piercing, vaccination or acne scar ever rose and stayed; and what treatment helped. The first visit is where this is taken, in person, with the skin examined in good light.

A sensible plan for keloid-prone skin then follows a short pattern. Treat a small test spot first, in a hidden area, and wait to see how it heals. Avoid high-tension sites where the choice is elective. Delay if the skin is inflamed or infected. Use the least injury that does the job.

Afterwards, the evidence points to simple steps. DermNet advises scar dressings worn 12 to 24 hours a day for at least 8 to 12 weeks, and the American Academy of Dermatology advises silicone gel for six months after scabbing and sun protection on the healing skin. If a scar begins to thicken, early treatment matters: DermNet describes intralesional corticosteroid, and the 2014 international panel recommends more vigorous early intervention for keloids, including prompt 5-fluorouracil, with a combination of modalities giving the most potential.

The honest complication: sometimes the answer is no

For some people on some sites, the right advice is to decline an elective procedure. If the ear has already grown a keloid, a new piercing is the wrong choice. If the chest or shoulder keeps scarring thickly, a cosmetic procedure there asks a lot of that skin for a small gain.

This is a clinical judgement, not a figure from a trial. A treatment that carries a real chance of leaving a bigger problem than the one it solved is, for me, a reason to say no, and to look for another way to reach the goal or to leave it alone.

When a keloid has already started

Do not wait to see whether it settles. DermNet says keloids are likely to persist without spontaneous resolution, and that surgical removal can leave a new keloid even larger than the original. The 2014 panel recommends more vigorous early intervention. A thickening that is a few weeks old is far easier to deal with than one that has been growing for years.

If you have a scar that is rising, itching or spreading beyond the original wound, see a doctor, and tell them about any piercing, surgery or treatment that came before it.

The short version

Keloid-prone skin heals by over-building, and any injury invites it. The lowest-risk procedure is the one that was not needed, and the next lowest is the one planned around your history.

Common questions

How do I know if I am prone to keloids?

A keloid after an earlier injury, a close relative with keloids, and darker skin types are the signals. DermNet says keloids are more frequent in Fitzpatrick skin types III to VI, which covers many Malaysians. A scar from chickenpox or acne that grew thick and raised is also a warning. Tell the doctor before any procedure.

Can I get my ears pierced if I am keloid-prone?

The American Academy of Dermatology says the best way to prevent a keloid is to skip getting a piercing on any part of your ears. If someone goes ahead anyway, the earlobe is the usual choice, and the plan is to watch it closely for thickening.

Which aesthetic procedures can trigger a keloid?

Any procedure that injures the skin can. DermNet lists surgery, cryotherapy, topical imiquimod, acne, infections and immunisation as triggers. The sources I checked give no keloid rate for microneedling, peels, filler, anti-wrinkle injections, threads or tattoo removal, so none is quoted here.

What do I do if a piercing or scar starts to thicken?

See a doctor early. The American Academy of Dermatology advises removing the earring and wearing a pressure earring at the first thickening. DermNet describes early intralesional corticosteroid, and the 2014 international panel recommends more vigorous early treatment of keloids.

Does The Retreat Clinic ask about keloids before treatment?

Yes, where it matters. The clinic's articles on chemical peels, acne scars, OndaPro and anti-wrinkle injections each list a history of keloid or thick scarring as something to say at the start.

If you need more information, you can always contact us.