Book now
News

How to remove old scars?

Dr.Thanh Minh (Mike), M.Med – Consultant DermatologistJul 26, 20255 min read
How to remove old scars?

Old scars on the face, especially persistent ones, are among the most challenging issues in skincare and skin restoration. Not only do they last over time, but they also appear in various forms such as atrophic scars (pitted scars), hypertrophic scars, and post-inflammatory hyperpigmentation. To achieve optimal results without wasting time, it is essential to correctly identify the appropriate scar removal method based on the scar type and skin condition.

Scar Formation Mechanism

Scarring is a natural part of the body’s healing process, typically progressing through four main stages:

  • Hemostasis: Blood vessels constrict and clotting occurs to prevent further bleeding.
  • Inflammation: White blood cells migrate to the wound site to clear bacteria and cellular debris. While this response is beneficial, prolonged or excessive inflammation can cause swelling, pain, and impair healing—ultimately increasing the risk of scarring.
  • Proliferation: Fibroblasts produce collagen to close the wound. If collagen is underproduced, atrophic (depressed) scars can form; if overproduced, hypertrophic or raised scars may result. Concurrently, capillaries regenerate to nourish new tissue.
  • Remodeling: Even after the skin surface has closed, fibrotic tissue continues to accumulate underneath. Without proper intervention, this may lead to permanent scars that persist for years.
xoá sẹo lâu năm trên mặt 3
A person may have multiple types of scars at the same time, making the treatment process more challenging.

Causes of Long-Standing Facial Scars

There are several common causes behind old scars on the face:

  • Acne: Especially common during puberty, inflamed or infected acne lesions can cause deep tissue damage, resulting in pitted scars if not treated promptly.

  • Chickenpox: Scratching or skin infections during the illness can leave scattered, wide scars across the face.

xoá sẹo lâu năm trên mặt 3
People with chickenpox who do not follow proper treatment and care guidelines are more likely to develop large, deep lesions that can lead to unsightly scars.
  • Injuries: Burns, falls, or traffic accidents may lead to deep wounds that are difficult to heal, often resulting in large hypertrophic or atrophic scars.

  • Surgical Procedures: Even minimally invasive procedures like laparoscopic surgeries can leave scars.

  • Other factors: Improper skin care, folliculitis, and untreated skin abscesses may also contribute to the development of permanent scars.

Effective and Safe Methods to Remove Old Facial Scars

Thanks to advancements in technology and medical expertise, removing old facial scars is now possible with greater safety and efficacy. High-tech solutions combined with a personalized treatment plan under the guidance of a trained dermatologist offer the best outcomes.

At Wedo Skin Clinic, we provide a range of proven solutions tailored to different types and severities of scarring:

Fractional CO2 Laser Technology

This cutting-edge solution penetrates deep into the skin layers to stimulate collagen production and resurface the skin. By fractionating the laser beam, this method targets only a portion of the skin at a time—minimizing surface damage. With a wavelength of 10,600 nm, it precisely reaches the dermis and is highly effective for long-standing scars, outperforming traditional CO2 lasers.

Erbium Laser

Operating at a 2940 nm wavelength, the Erbium laser is water-absorbing and gently removes the epidermis and part of the dermis to trigger the skin’s natural healing response. At temperatures above 50°C, collagen fibers shrink and break down, making room for new collagen to form over the next 3–6 months. Simultaneously, damaged surface cells are gradually replaced by new epithelial cells, leaving the skin smoother.

xoá sẹo lâu năm trên mặt 3
Erbium Laser is one of the most advanced scar treatment methods. However, it must be performed by a qualified doctor who can adjust the parameters appropriately to avoid unwanted risks during the treatment process.

Subcision (Scar Releasing Technique)

Dermatologists use a specialized needle to sever fibrous bands beneath the skin that pull down scarred areas. This allows the skin to lift and encourages natural collagen formation. Subcision can be combined with laser treatments for enhanced results.

TCA Cross

The TCA (Trichloroacetic Acid) Cross technique involves applying a high concentration of acid directly to pitted scars. This promotes deep collagen remodeling and gradual filling of the scar. Ideal for shallow or non-invasive scars, the method offers quick recovery and is cost-effective.

Microneedling with Chemical Peels

This combination treatment creates micro-injuries in the skin while applying chemical solutions to boost collagen and elastin production. It helps fill in scars, reduce pore size, and improve overall skin texture. Especially effective for pitted and atrophic scars.

Mesotherapy

This technique involves injecting a cocktail of vitamins, minerals, amino acids, and bioactive ingredients directly into the dermis. It enhances blood circulation, stimulates collagen and elastin production, and rejuvenates scarred skin.

Conclusion

Removing old scars from the face requires a combination of expert knowledge, modern technology, and personalized treatment protocols. While there’s no one-size-fits-all solution, with accurate diagnosis and the right approach, significant improvements in both skin structure and appearance are achievable.

FAQs About Long-Standing Facial Scars

1. Can old facial scars be completely removed?
They can be significantly improved if correctly diagnosed and treated using suitable technologies along with a customized treatment plan.

2. Why is it important to have a qualified dermatologist treat old scars?
Because each scar type forms differently, only trained specialists can accurately assess the condition and recommend safe, effective solutions.

3. What technologies are currently most effective for treating old scars?
Fractional CO2 Laser and Erbium Laser are two leading options for deep skin resurfacing and collagen stimulation, especially effective for long-standing pitted scars.

4. How much does old scar removal cost?
Costs vary depending on the treatment method and severity of the scars. Below is the Wedo Skin Clinic’s scar treatment price list for reference:

Treatment Service Price
General Consultation + Scar Analysis + Dermatology Follow-Up FREE
Celluma LED Therapy for Scar Damage Recovery 330,000 VND
High-Power Photocare Premium Therapy 480,000 VND
Hypertrophic Scar Treatment 600,000 VND
TCA Cross for Ice Pick Scars & Large Pores 500,000 – 1,500,000 VND (Customized by doctor)
Scar Base Cutting / Resurfacing with Laser Erbium 700,000 – 1,500,000 VND (Customized by doctor)
Subcision – Scar Fibrosis Release 500,000 – 3,500,000 VND (Customized by doctor)
Q-Switch Nd:YAG Laser Scar Treatment 2,400,000 VND
Fractional CO2 Laser (Localized Treatment) 1,500,000 – 3,500,000 VND (Customized by doctor)
Full-Face Fractional CO2 Laser From 4,900,000 VND (Customized by doctor)
Scar Mesotherapy – Collagen Regeneration 1,900,000 – 4,900,000 VND (Customized by doctor)

5. What makes Wedo Skin Clinic stand out in treating old scars?
Wedo Skin Clinic integrates cutting-edge technologies with personalized treatment protocols, all under the close supervision of experienced dermatologists.

Dr.Thanh Minh (Mike), M.Med – Consultant Dermatologist
Medically reviewed by

Dr.Thanh Minh (Mike), M.Med – Consultant Dermatologist

Reviewed:

Master and Specialist Level I dermatologist Dr. Mike (Thanh Minh) trained with a clinical focus. After his general‑medicine degree, he earned top‑ranked admission to the Dermatology Residency at Pham Ngoc Thach University of Medicine — the foundation for careful, up‑to‑date practice. His approach is honest, straightforward counselling: an accurate assessment, a clear account of what treatment can and cannot do, no exaggeration, and no unnecessary intervention — so patients understand their skin and reach durable results.

Book an appointment

Begin your journey to beautiful skin today

10,000+ patientsDermatologist-ledRated 4.9/5