What are the principles and effects of laser scar removal?

Dec 31, 2024 Source: Cainiu Health

Dr. Han Xuefeng

Introduction

In general, laser scar removal works by using colored lights of different wavelengths to selectively treat the scarred areas. Laser scar removal may stimulate the skin's natural regeneration and repair processes, reduce the appearance of scars, improve skin texture, decrease pigmentation, and minimize scar proliferation. If any adverse symptoms occur, it is recommended to seek timely medical consultation at a hospital and undergo standardized treatment under the guidance of a physician.

Generally, laser scar removal works by using colored lights of different wavelengths to selectively treat the scarred areas. Laser scar removal may stimulate in-situ skin regeneration and repair, fade scars, improve skin texture, reduce pigmentation, and decrease scar hyperplasia. If discomfort occurs, it is recommended to seek timely medical consultation at a hospital and follow standardized treatment under a physician's guidance. A detailed explanation is as follows:

1. Principle of Laser Scar Removal

Laser scar removal works by using colored lights of different wavelengths to selectively target the scar tissue. By precisely controlling the laser wavelength, accurate repair of the scar tissue can be achieved without damaging the surrounding healthy skin tissue. When the laser irradiates the skin, it penetrates into the subcutaneous layer, transforming the scar tissue from granular into powdery form. These powder-like particles are subsequently absorbed and eliminated by cells, gradually lightening the scar until it eventually disappears. The approximate cost is 1000–4000 yuan per session, with visible improvement generally seen after 1–3 weeks. However, side effects such as redness, itching, and pain may occur.

2. Effects of Laser Scar Removal

1. Stimulate In-Situ Skin Regeneration and Repair

Laser scar removal can stimulate the regeneration and repair capacity of skin cells, promoting the regrowth of skin tissue at the scar site, thereby achieving the purpose of scar repair.

2. Fade Scars

Through laser irradiation, scar tissue can be disrupted, causing it to soften and fade until it closely matches the color and texture of normal skin.

3. Improve Skin Texture

Laser scar removal can also improve the texture of the skin at the scar site, making it smoother and finer, thereby reducing the unevenness caused by scarring.

4. Reduce Pigmentation

For scars with pigmentation, laser treatment can break down the subcutaneous pigment cells, restoring normal skin color and reducing the impact of pigmentation on the scar's appearance.

5. Reduce Scar Hyperplasia

For early-stage hypertrophic scars, laser treatment can seal off blood vessels, thereby reducing scar hyperplasia.

It is recommended to maintain good hygiene habits, follow a balanced diet, and engage in appropriate physical exercise to promote overall health.

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How to remove facial scars

Scar refers to a scar or mark left on the skin, which can be treated through various methods such as medication, laser scar removal, microneedling, radiofrequency ablation, and chemical peels like glycolic acid treatments. It is recommended to visit a reputable hospital and undergo these procedures under the guidance of a qualified physician to ensure safety and effectiveness. After the procedure, it is important to keep the face clean, avoid contact with water, refrain from scratching, apply prescribed ointments as directed, and strictly follow sun protection measures.