This is the set of resources for improving a scar: changing its direction, narrowing it, flattening it or lightening it. With a keloid, surgery alone is not enough and almost always makes things worse.
It is worth starting with the distinction that orders everything else. A hypertrophic scar is thick and red but stays within the limits of the original wound, and it tends to improve on its own over time. A keloid grows beyond those limits, invades healthy skin that was never injured, does not improve on its own and has a strong tendency to come back. They are not grades of the same problem: they behave differently and are treated differently.
And here is the point that settles most consultations: excising a keloid and suturing, with nothing else, makes it come back in the great majority of cases, and frequently larger than the original, because the new wound is bigger than the one before. Treating a keloid is always combined — injections, compression, silicone sheets and, in selected cases, surgery within a protocol — and it is sustained over months. Anyone offering to remove it in one session and leave it smooth is not describing what is going to happen.
It usually helps when there is
- A wide, depressed or badly oriented scar after a wound or surgery.
- A scar that pulls, bothers you or slightly limits movement.
- A keloid that itches, hurts or grows, within a combined treatment.
- A hypertrophic scar that has not improved after twelve months.
- A visible scar that genuinely affects daily life.
Worth discussing first if
- A recent scar: most improve on their own during the first year.
- A keloid in a patient who will not be able to follow months of treatment.
- A history of multiple keloids, which calls for a more conservative plan.
- Expecting the scar to disappear.
- High-tension areas — breastbone, shoulders — where the result is more limited.
None of these rules the procedure out on its own; all of them change the conversation.
How it is treated
One alone is almost never used: it is the combination that works.
Injections
Corticosteroid, alone or combined, applied inside the lesion every three to four weeks. It is the mainstay of keloid treatment and it flattens, softens and stops the itching.
Surgical correction
Reorients, narrows or releases the scar. In ordinary scars it gives very good results; in keloids only within a protocol with additional treatment.
Silicone and compression
Silicone sheets or gel and compression garments, kept up for months. Unglamorous and very effective, above all as prevention.
Never excise a keloid and nothing more
It is the central rule of this consultation. Excising a keloid on its own has a very high recurrence rate, and the lesion comes back on a wound larger than the first. When surgery is done, it is within a protocol: injections from the operation itself and in the following weeks, sustained compression and follow-up over months. Without that support, surgery does harm.
Time works in favour with an ordinary scar. During the first twelve months a scar is red, firm and raised, and then it lightens and softens on its own. Operating in that phase means intervening on something that was going to improve by itself, so apart from functional exceptions you wait a year.
In scars that can be corrected surgically, what most changes the result is direction: a scar oriented against the natural lines of tension widens, and reorienting it with Z-plasties usually improves it more than any topical treatment. And the factor that helps most in any case is strict sun protection during the first year: a scar exposed to the sun pigments permanently.
What the process is like
It is a treatment of months, not of one session.
Consultation
Whether it is hypertrophic or keloid is established, how long it has been there is assessed and a realistic plan is defined, saying what can and cannot be achieved.
Initial treatment
Injections every three to four weeks, silicone and compression. In many cases this is enough and no surgery is needed.
Surgery if appropriate
Surgical correction in ordinary scars, or excision within a protocol in selected keloids, with an injection from the operation itself.
Maintenance
Silicone, compression and sun protection for six to twelve months, with periodic reviews to catch a recurrence early.
What to expect
Improvement is measured in months and is sustained by persistence.
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Days 1 to 7
After an injection, mild discomfort and sometimes local lightening of the skin. After surgery, simple wound care and normal life.
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Weeks 3 to 12
Injection sessions every three to four weeks. The lesion softens and stops itching, which is usually the first noticeable improvement.
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Months 3 to 6
Progressive flattening. Continued use of silicone and compression. This is the period in which an early recurrence can be detected.
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Months 12 to 18
Consolidated result. The scar reaches its final appearance, better than at the start but still there.
Risks, and what is not promised
The dominant risk is recurrence of the keloid, which is frequent even with correct treatment and very likely if surgery is done without a supporting protocol. From the injections: atrophy and lightening of the skin at the injection point, telangiectasias, pain during the session and, with repeated applications, local effects on the neighbouring tissue.
From surgery: the new scar may end up worse than the previous one, above all in patients with a history of keloids, and that is a risk explained clearly before any correction is proposed.
Erasing the scar is not promised: there is no treatment that removes one. What is promised is working to make it flatter, lighter, narrower and free of pain or itching, with an improvement that in many cases is considerable. These risks are reduced by combined treatment, months of persistence and strict sun protection. They are not eliminated. The ones that apply to your case are set down in writing in the informed consent.
The information on this page is for guidance and does not replace an in-person medical consultation. Medical practice is an obligation of means, not of result.
The questions we are asked most about scars and keloids
No. There is no treatment — surgical, laser or cream — that eliminates a scar: any wound that goes through the dermis leaves a permanent mark.
What can be achieved is making it flatter, lighter, narrower and better oriented, and stopping it itching or hurting. In many cases the improvement is considerable.
Excising a keloid with nothing else makes it come back in the great majority of cases, and frequently larger, because the new wound is bigger than the one before.
When surgery is done, it is within a protocol: an injection from the operation itself, compression and follow-up over months. Without that, surgery does harm.
A hypertrophic scar is thick and red but stays within the limits of the original wound, and it tends to improve on its own over time.
A keloid invades healthy skin that was never injured, does not improve on its own and tends to come back. They behave differently and are treated differently.
To correct it surgically, generally a year: during the first twelve months a scar is red and firm and then improves on its own.
But prevention starts immediately: silicone, compression where appropriate and strict sun protection from the moment the wound closes. That is what most influences how it will end up.
Question not answered here? There are more answers in the frequently asked questions.
