How to Remove Hypertrophic Scars

Dec 18, 2021 Source: Cainiu Health
Dr. Liu Wan
Introduction
Local subcutaneous injection: For hypertrophic scars, the medication is injected directly into the subcutaneous tissue beneath the scar. The primary active ingredient in this medication is a corticosteroid, which exerts anti-inflammatory effects and helps dissolve inflamed tissue. This is currently the simplest treatment for hypertrophic scarring.

When our bodies sustain injuries or undergo surgical procedures, scarring is common. Individuals with a genetic predisposition to keloid formation—often termed “keloid-prone” or “scar-prone” skin—are especially susceptible to developing keloids following even minor trauma. Keloids, also known as hypertrophic scars, are characterized by excessive collagen deposition and fibroblast proliferation beyond the original wound boundaries. They are notoriously difficult to eliminate and can cause permanent, disfiguring changes to one’s appearance—warranting careful attention and timely intervention. So, how can hypertrophic scars be effectively treated?

How to Treat Hypertrophic Scars

Intralesional Corticosteroid Injection

This approach involves direct injection of corticosteroid-containing medication into the scar tissue. Corticosteroids exert potent anti-inflammatory effects and help dissolve inflamed, hyperproliferative tissue. Currently, intralesional injection remains the simplest and most widely used first-line treatment for hypertrophic scars.

Surgical Excision

Surgical removal is generally indicated for larger, more extensive hypertrophic scars. Although technically demanding, it often yields favorable clinical outcomes. Common surgical techniques include: (1) excision combined with skin grafting (particularly for facial scars), (2) local flap reconstruction, and (3) simple excision with primary closure.

Chemical Peeling

Chemical peeling is suitable for mild or superficial scarring. It employs agents such as trichloroacetic acid (TCA) or alpha-hydroxy acids (AHAs) to gently remove the outermost layer of epidermal cells. For typical hypertrophic scars, dermatologists commonly use TCA peeling, which demonstrates good efficacy in improving scar texture and appearance.

Laser Resurfacing

Laser resurfacing utilizes carbon dioxide (CO₂) lasers to precisely ablate and smooth the skin surface. This technique is relatively bloodless and represents a significant advancement over traditional dermabrasion methods. Given that hypertrophic scars primarily result from excessive proliferation of fibrous connective tissue following skin injury, laser therapy aims to restore normal skin architecture by promoting microcirculation, stimulating collagen and elastin synthesis, and facilitating cellular regeneration. Newly synthesized collagen gradually replaces scar tissue, yielding improved cosmetic outcomes.

Ultra-High-Frequency (UHF) Laser Therapy

UHF laser therapy is a minimally invasive modality that integrates the advantages of surgical excision, conventional laser treatment, cryotherapy, and chemical cauterization. By delivering highly focused energy at ultra-high frequencies, it achieves precise, controlled ablation of scar tissue while minimizing damage to surrounding healthy skin—resulting in optimal therapeutic outcomes.

Microcrystal Dermabrasion

Microcrystal dermabrasion is a gentle, low-risk cosmetic procedure for treating hypertrophic scars. It works by propelling sterile, fine microcrystals onto the treatment area, mechanically exfoliating aged and damaged epidermal cells. Concurrently, the procedure stimulates the basal layer of the skin, enhancing oxygen uptake and microcirculation—thereby promoting natural synthesis of collagen and elastin. When combined with appropriate post-procedure skincare regimens, this treatment helps restore skin smoothness, clarity, elasticity, and radiance.

It is essential to understand hypertrophic scarring and its management options. Patients should engage in thorough, informed discussions with qualified healthcare providers before initiating any treatment. Such communication ensures accurate diagnosis, realistic expectations, and selection of safe, evidence-based interventions—minimizing risks of complications or adverse effects and safeguarding overall health.

We hope the above information has been helpful. Wishing you good health and happiness!

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