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Conditions · Texture & Scarring

Surgical & Trauma Scars

Scars are remodelled, not removed. The realistic aim is a scar that is flatter, paler, softer and less conspicuous — not absent.

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Surgical & Trauma Scars — assessed at IN Eternity Clinic Singapore
In short

Surgical and injury scars are remodelled, not removed. The realistic aim is a scar that is flatter, paler, softer and less noticeable. Treatment depends on the scar's age and type: raised scars, keloids and sunken scars need different approaches, and many scars keep improving by themselves for a year or more. See 4D Scar Reconstruction and fractional laser in Singapore.

Reviewed by Dr Sin Yong, Medical Director, IN Eternity Clinic · Updated
Key facts
  • What a scar is: collagen laid down in a disorganised pattern while a wound heals. It remodels for months but never matches uninjured skin.
  • Types: flat (mature), hypertrophic (raised within the wound line), keloid (spreading beyond it) and atrophic (sunken).
  • Key clue: a hypertrophic scar stays inside the original wound; a keloid grows beyond it and is more likely to return after treatment.
  • Timing: a scar keeps changing for 12 to 18 months. Red, immature scars and pale, mature scars are treated differently.
  • What treatment can do: fractional laser, injections for raised scars and release of tethered areas can soften, flatten and blend a scar. They do not remove it.
  • Higher-risk sites: the chest, shoulders, jaw and earlobes are more prone to raised scars and keloids.
  • Assessed by: Medical Director Dr Sin Yong at IN Eternity Clinic, 9 Scotts Road, Singapore.
Reviewed by Dr Sin Yong, Medical Director, IN Eternity Clinic · Last updated
Mechanism

What is actually happening

Wound healing lays down collagen in a disorganised pattern. Over months it remodels, but the fibre orientation never returns to that of uninjured skin.

The distinction

How it is told apart

A hypertrophic scar stays within the original wound margins; a keloid extends beyond them. That difference determines treatment and recurrence risk, so it is established first.

Assessment

What is established first

Age of the scar, whether it is still maturing, hypertrophic versus keloid versus atrophic, tension across the site, and Fitzpatrick type.

Approach

What is typically done

Timing matters more than intensity. Early intervention on an immature scar and later resurfacing address different phases. Tension-bearing sites carry a higher recurrence risk.

When treatment waits

When it is deferred

A scar less than several months old is often still remodelling on its own, and intervening too early can be counterproductive.

4D Scar Reconstruction →
In practice

How scars are assessed and treated at IN Eternity

The assessment records how old the scar is, whether it is still red and active, whether it is raised, sunken or tethered, how much tension the site is under, and the skin type. Any scar from surgery is treated only once the wound has healed and the doctor who performed the operation is satisfied with healing.

Raised scars may be flattened with injections and pressure or silicone care; sunken or textured scars are usually treated with fractional laser, either CO2 or the non-ablative FSX Laser; tethered scars may need release. Where several of these are needed together, they are sequenced within IN Eternity's 4D Scar Reconstruction protocol.

What to expect

Scar treatment: how many sessions and how long

Most scars need a course of three or more sessions, four to eight weeks apart, and change is judged over months. Keloids need closer follow-up because they can return. Sun protection on the scar throughout treatment lowers the risk of darkening, which is more likely in Asian skin.

“A scar is remodelled, not removed. The aim is flatter, paler and softer, and timing matters more than intensity.”
— Dr Sin Yong, Medical Director, IN Eternity Clinic

Frequently asked

What are surgical & trauma scars?

Scars are remodelled, not removed. The realistic aim is a scar that is flatter, paler, softer and less conspicuous — not absent.

How are surgical & trauma scars told apart from similar conditions?

A hypertrophic scar stays within the original wound margins; a keloid extends beyond them. That difference determines treatment and recurrence risk, so it is established first.

What is assessed before treating surgical & trauma scars?

Age of the scar, whether it is still maturing, hypertrophic versus keloid versus atrophic, tension across the site, and Fitzpatrick type.

When is treatment deferred?

A scar less than several months old is often still remodelling on its own, and intervening too early can be counterproductive.

When can I start treating a new surgical scar?

Once the wound has fully closed and healed, and the operating doctor is satisfied. Early, gentle measures such as silicone and sun protection can start then; laser is usually planned after the first few weeks to months, depending on how the scar is behaving.

Can a keloid be treated with laser alone?

Usually not. Keloids tend to need a combination, often starting with injections to flatten them, and they carry a real risk of returning. Laser may be added to help colour and texture, with close follow-up.

References

  1. Ogawa R. Keloid and Hypertrophic Scars Are the Result of Chronic Inflammation in the Reticular Dermis. Int J Mol Sci 2017;18(3):606. doi:10.3390/ijms18030606
  2. Manstein D, Herron GS, Sink RK, Tanner H, Anderson RR. Fractional photothermolysis: a new concept for cutaneous remodeling using microscopic patterns of thermal injury. Lasers Surg Med 2004;34(5):426-438. doi:10.1002/lsm.20048
  3. Singapore Medical Council. Guidelines on Aesthetic Practices for Doctors (2016 edition). healthprofessionals.gov.sg/smc

These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.

Have this assessed properly

Every assessment at IN Eternity Clinic is carried out personally by Medical Director Dr Sin Yong at 9 Scotts Road, #12-01 Pacific Plaza. If the honest answer is that treatment should wait, you will be told that.

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