Est. 2001 · Independent · Australian English

A journal of aesthetic and reconstructive surgery

Cosmetic Surgeons

An independent Australian journal of aesthetic and reconstructive surgery

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Reconstructive surgery

Scar revision: realistic expectations

Hypertrophic scars versus keloids, why timing and skin of colour matter, and why silicone, corticosteroid injections and patience usually come before any operation — which is a last step, not a deletion of history.

Elise Nguyen, Aftercare editor · 25 February 2025 · 9 min read · Updated 18 December 2025

Sterile gauze dressings
Photo: Zax71, CC0 1.0, via Wikimedia Commons All image credits.

A scar is the ordinary end of a wound. It is collagen laid down in a hurry, then remodelled for months. It is also, for many people, the part of an operation or an accident that stays visible when the rest has been absorbed into a story. Scar revision exists because some scars catch on a collar, pull an eyelid, itch, or sit in a line that the face cannot hide. It does not exist to delete history. Anyone who offers a blank slate is advertising, not consenting.

This is an aftercare editor’s explainer for Australian readers, not a plan for your particular scar. Check the practitioner on the Ahpra register. We do not publish testimonials or before-and-after galleries. Neighbouring pieces live in the reconstructive hub and the recovery hub. If the scar followed a facial skin cancer, start with skin cancer reconstruction on the face, because the first duty in that setting is still the tumour.

Hypertrophic, keloid, and the ordinary pale line

Most surgical scars, given time, become a paler, flatter line. “Given time” is the phrase people resent, and it is still the biology. Redness and firmness at six weeks are expected. They are not a verdict. Remodelling continues for a year and, in some people, longer.

A hypertrophic scar is a thick, raised, often itchy scar that remains within the boundary of the original wound. It is common over the sternum, the shoulders, and anywhere a wound was infected, delayed, or under tension. It can soften with months, with silicone, with pressure, and sometimes with injections. It can also stay proud. It is not a keloid.

A keloid grows past the original wound, sending firm tissue into the neighbouring skin. Earlobes after piercing, the chest, the shoulders and the jawline are familiar sites. Keloids can appear after quite a small injury. They are more common in people with darker skin, they can be familial, and they have a dismal habit of returning after they are cut out. That last fact is why a responsible consult treats keloid excision as a last, carefully bundled plan — often combined with other measures — rather than as a tidy trim.

Contracture is a third problem: a scar that shortens across a joint, an eyelid or a lip and limits movement or leaves a feature unable to close. Contracture is a functional indication. It is one of the situations in which waiting a full year may be the wrong politeness.

Pigment change — a line that is darker or paler than the surrounding skin — is not solved by cutting it out and hoping. The new scar can pigment too, particularly in skin of colour and in scars that see sun. Tattooing, make-up and time are sometimes more honest than another incision.

Timing is a treatment

The most useful scar advice in the first months is often not an operation. Protect the line from the sun. Follow the wound-care sheet you were given. Do not pick at scabs. If the operating team recommended taping, silicone or a particular garment, use it in the way they described. Massage, when the wound has closed and the team has said so, is a way of keeping the skin mobile; it is not a way of rubbing a scar out of existence.

Early revision — cutting a red, immature scar because it looks angry in week four — is how people collect a second angry scar. Many Australian plastic-surgery and dermatology rooms will ask for a period of maturation, commonly discussed as six to twelve months, before they will consider a purely aesthetic revision. That wait is easier to tolerate if someone has explained what “maturation” looks like: a gradual fade from red to pink to pale, a gradual softening, a gradual drop in itch.

Exceptions exist and should be named. A wound that has split, a suture abscess, a flap or graft that is failing, or a contracture that is already tethering an eyelid does not wait on a calendar. Those are acute or functional problems. They belong with the original team, or with an emergency department if the original team cannot be reached. Healthdirect (1800 022 222) is the national nurse triage line when you are unsure; 000 is the number for rapidly spreading redness, fever and feeling seriously unwell.

People who are still in the first weeks after a planned operation will get more from the recovery hub than from a revision consult. Sleep, nutrition, smoking cessation where advised, and leaving the dressings alone are the unfashionable determinants of how a scar starts.

Silicone, steroid, pressure — and what they are not

Medical-grade silicone, as a gel or a sheet, is a first-line, low-drama measure for raised scars that have closed. The research is not theatrical, and it is not nothing. Used consistently for weeks to months, silicone can flatten or soften some hypertrophic scars and can be part of keloid aftercare. It does not erase a wide, poorly placed line. It is not a particular brand, and this journal will not advertise one.

Intralesional corticosteroid — a steroid injected into the scar by a registered practitioner — is the next ordinary tool for a thick, itchy, hypertrophic scar or a keloid. It can flatten. It can also thin the surrounding skin, leave a pale patch, or, rarely, cause a small area of tissue loss if it is placed too freely. The dose, the interval and the number of sessions are clinical judgements. We describe the class. We do not name a product.

Pressure garments and clips (the earlobe clip after a keloid is the classic example) work by a mechanical logic that is easy to underestimate. They are inconvenient. They are part of why keloid care is a program, not an afternoon.

Other measures exist and sit in specialist hands: cryotherapy, laser of particular classes, 5-fluorouracil in selected protocols, radiation after keloid excision in tightly defined settings. Each has a complication list. None is a consumer device to buy after watching a video. Energy devices and prescription agents used in Australia sit under TGA rules; advertising them by brand as a scar cure is not something this site will do.

Infection, foreign material, and a wound that is still under tension will defeat all of the above. A revision consult that skips “is this still an active wound?” is a consult in the wrong order.

Surgery as a last step

When an operation is discussed, it should be because non-surgical care has been given a chance, or because the problem is position, width, or function that injections cannot fix. The surgical options, in general terms, are simple to list and easy to oversell.

Excision and careful re-closure can help a wide, stretched scar that sits in a reasonable line — for example, a spread abdominal scar after a wound infection. The new scar is still a scar. If the tension that spread the first one is still there, the second one can spread too. Z-plasty and related local flaps change the direction of a line, which is useful when a scar crosses a joint or a facial crease at a bad angle. They add length and extra limbs of scar; they do not subtract history. W-plasty and geometric broken-line closures are ways of making a straight, noticeable line less easy for the eye to follow. They are longer incisions. They are a trade.

Keloid excision is the decision that should slow the room down. Cutting a keloid, without a plan for the recurrence that is common, is how a small keloid becomes a larger one. Bundled care — excision plus steroid, plus pressure, plus, in some units, other adjuncts — is the adult version of the conversation. Even then, recurrence happens. Consent that does not mention recurrence is incomplete.

Facial scars after skin-cancer reconstruction have a further constraint: the reconstruction was designed around a hole and a blood supply. Revising it too early, or for a purely cosmetic wish, can threaten that design. Wait, photograph in consistent light, and take the original operative notes if you have them.

Anaesthesia for scar revision ranges from local in rooms to a day-hospital case for a long or paediatric scar. The setting should match the plan. Cosmetic-surgery rules in Australia — referral, cooling-off — apply when the indication is aesthetic. A functional contracture is coded differently. Either way, “specialist plastic surgeon” is a protected title; dermatologists and other registered practitioners also treat scars. Read the register rather than the adjective on the door.

Skin of colour is a planning fact

Fitzpatrick skin types IV to VI — olive through brown and black skin — have a greater tendency to post-inflammatory hyperpigmentation and, in some sites, to keloid. That is not a reason to withhold care, and it is not a reason to pretend all scars behave like fair inner-arm skin. It should appear in the consent: the risk of a darker or paler line, the higher keloid caution, the importance of sun protection, and a slower trigger for elective cutting.

People with darker skin are also more likely to have been told, at some point, that nothing can be done, or that they will “always scar badly”. That fatalism is not evidence-based care. It is a reason to find a practitioner who revises scars in a range of skin types and who will say no when surgery is the wrong tool.

First Nations patients, and anyone living with a high ultraviolet load in regional Australia, sit at the intersection of pigment risk and sun risk. Aftercare that assumes an office worker who can stay indoors is aftercare written for someone else.

This journal will not illustrate these points with photographs of other people’s bodies. Variation is the point. A scar that is acceptable to one person is not a template.

What a realistic consult sounds like

Bring a timeline: when the wound happened, whether it was infected, what has already been tried, and which medicines you take — including isotretinoin history, steroids and anything that affects healing. Bring a photograph from three months ago if you have one; change over time is information. Ask whether the scar is hypertrophic, keloid, pigment, contracture, or an ordinary line in a bad place. Ask what would be done before any operation. Ask what the new scar would look like if the revision goes as hoped, and what it would look like if a keloid returns.

Ask about cost. Medicare items exist for some medically significant scar problems; they are specific. Aesthetic revision is often private. Quotes should say whether more than one session of injections is included, because keloid care is rarely a single visit.

A second opinion is ordinary if the first plan is immediate excision of a keloid, or a laser package sold before a diagnosis. Check our editorial standards if you want the rules this site applies to language about results: no testimonials, no galleries, no guarantees.

Scar revision can be worth doing when a line causes a functional problem, or when a matured, ordinary scar can be moved into a better crease. It cannot make skin unwritten. Treat silicone and time as the first practitioners, treat steroid as a tool with a thinning risk, treat surgery as a last and honest trade of one scar for another, and let skin type into the plan early. The scar will still be there. The question is whether it will be easier to live with.

Questions readers ask

Can surgery make a scar disappear?
No. Revision replaces one scar with another, hopefully better placed, narrower or flatter. Anyone who promises an unmarked skin surface is not describing scar biology.
How long should I wait before considering revision?
Many teams ask people to wait until a scar has matured — often in the order of six to twelve months — unless a functional problem, such as a contracture that limits movement, needs earlier attention. Early redness is not, by itself, a reason to operate.
What is the difference between a hypertrophic scar and a keloid?
A hypertrophic scar is a thick, raised scar that stays within the original wound. A keloid grows beyond the wound edge into surrounding skin. The distinction matters because keloids have a higher chance of returning after excision, and surgery is approached more cautiously.
Do silicone and steroid injections actually do anything?
Medical-grade silicone gel or sheets, and, where a practitioner judges it appropriate, injections of a corticosteroid into the scar, are ordinary first measures for raised scars. They can flatten or soften some scars. They do not work for everyone, and they are not a cosmetic guarantee.
Why does skin colour keep coming up?
Darker skin types have a higher tendency to pigment change and, in some sites, to keloid. That is a planning fact, not a reason to refuse care. It should change the consent, the aftercare and the threshold for cutting.

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