How many days does it take for the crust to fall off after fractional laser treatment?

May 10, 2025 Source: Cainiu Health

Dr. Chen Lu

Introduction

Fractional laser treatment typically results in scabbing that falls off within 7 to 10 days, with the exact time varying from person to person. For individuals with better skin recovery capacity, it usually takes around 7 days. However, for those with slower healing, it may take up to approximately 10 days. After fractional laser treatment, it is important to follow the physician's recommendations and perform proper post-treatment care to accelerate recovery and reduce the risk of complications.

　　Fractional laser is a common skin regeneration therapy, primarily used to improve skin texture, reduce fine lines, acne scars, pigmentation, and other issues. The general reference price for fractional laser treatment ranges from 2000 to 10000 yuan per session, and visible improvement is usually observed within 1 to 3 months. Typically, scabs fall off 7 to 10 days after the treatment, although the exact time may vary among individuals. For individuals with better skin recovery ability, scabs generally fall off in about 7 days. However, for those with poorer skin recovery capacity, it may take around 10 days. Detailed explanation is as follows:

　　

　　Fractional laser uses a special optical lens to focus laser energy into tiny spots. These spots are arranged in a matrix pattern and create microscopic thermal injuries in the skin when penetrating through it. After treatment, a thin layer of scab forms on the skin surface, which is a normal phenomenon. For individuals with better skin regeneration capability, skin cells regenerate more quickly, and keratinocytes proliferate rapidly and migrate upward, gradually covering the wound area, allowing the scab to naturally fall off in about 7 days.

　　However, for individuals with poorer skin recovery abilities, the regeneration speed of skin cells is slower, and keratinocyte proliferation is delayed, failing to promptly fill the damaged areas. This prolongs the separation process of the scab from the skin, requiring approximately 10 days for the scab to fall off.

　　After fractional laser treatment, it is important to follow the doctor's advice and perform appropriate post-treatment care to accelerate recovery and reduce the risk of complications.

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