Scars from surgery or accidents often remain unchanged over time, causing emotional distress. Once you decide on laser scar treatment, questions like "When should I start so it's not too late?" or "Can old scars also be treated?" are usually the first to come to mind. To answer directly, it is reported that for wound scars, starting as soon as possible after healing is more advantageous for treatment. We have gathered five frequently asked questions from patients in the consultation room and will address them one by one.
Scar Treatment: Is it really too late if you miss the timing?
Missing the optimal treatment period for early scars can reduce the effectiveness of improvement. We often talk about the "golden time" for scar treatment, and for wound scars, it is advisable to start as soon as possible after healing. For scars involving incisions, such as cosmetic surgery scars or surgical scars, early management affects the outcome.
Recent studies report that it is better to start treating scars as soon as possible after healing, rather than waiting for them to mature.
Is the advice to wait 6 months still valid?
In the past, patients were advised to wait about 6 months for scars to mature before treatment. However, over the past decade, various research findings have emerged, shifting the trend towards treating scars as early as possible.
Previous skin dermabrasion methods were time-consuming, significantly interfered with daily life, and their effects were often unsatisfactory. As treatment methods have evolved, the burden in terms of recovery and efficiency has decreased.
How do Fractional Lasers change scars?
Fractional laser scar treatment works by increasing treatment efficacy while reducing the burden of side effects. An interesting point is that the same fractional laser is used for both raised scars and depressed scars.
Skin has a tendency to return to its original state through regeneration. Thus, raised scars flatten, and depressed scars fill in, showing an effect. If you are concerned about depressed scars, referring to the depressed acne scar section may also be helpful.
While not applicable to all scars, it can be applied to most scars.
For questions, inquire via chat consultation about laser scar treatment.
There are specific cases where the Pinhole Technique is more advantageous
The reason why the Pinhole Technique is more advantageous than fractional lasers is its ability to finely adjust intensity and density according to the scar's shape, thickness, and texture. It can treat thick burn scars that are difficult to address with fractional lasers, and in some cases, scars that did not respond to fractional lasers can be improved with the Pinhole Technique. Depending on the scar pattern, methods like Mild Pinhole or Pinhole Alpha may be chosen.
Here's a summary of which laser is more suitable for each scar type:
| Scar Pattern | Primary Consideration |
|---|---|
| Shallow, wide depressed scars | Fractional laser-centric |
| Thick or firm scars | Pinhole Technique for intensity/density adjustment |
| Scars with residual redness | Concurrently use redness-reducing laser |
| Pigmented scars | Concurrently use toning and other pigment management |
Are older scars more difficult to treat?
Many people believe that a 30-year-old scar is more difficult to treat than a 3-year-old scar. However, what often determines treatment outcomes is not the elapsed time, but rather the texture, thickness, and whether the area is large.
In other words, you can understand that the nature of the scar itself has a greater impact on the treatment outcome than the elapsed time.
Is post-procedure redness or pigmentation okay?
Laser treatment for depressed scars can cause temporary redness or pigmentation. Generally, these are temporary reactions, so you don't need to worry excessively. Management is adjusted based on the pattern, as follows:
- If redness persists, supplementary care with a redness-reducing laser
- If pigmentation occurs, gradual improvement with toning, etc.
- Immediately after the procedure, avoid irritation and focus on moisturizing and sun protection
- Recovery patterns can vary individually, so adjustments are made based on progress
- If new reactions occur, consult with medical staff first rather than self-treating
If redness persists for a long time, referring to the facial redness section may also help with understanding.
This concludes our summary of wound and skin laser scar treatment. Even those worried about severe scarring from surgery can expect improvement through lasers tailored to the scar's nature. The first step is to accurately assess your scar condition rather than worrying alone.
If you are concerned about treatment timing, consult via chat about the optimal starting point for your scar condition.
Thank you for reading.
This article was reviewed by Dr. Lee Sang-joo, a dermatologist and chief director of Yonsei Star Dermatology Sinchon. He has extensive experience in scar treatment as an adjunct professor at the Department of Dermatology, Yonsei University College of Medicine. First published 2024-05-20 · Last reviewed July 23, 2026
This article provides general information for reference, and the timing and response to scar treatment may vary for each individual. For an accurate diagnosis, please consult with a dermatologist.