Can laser treatment flatten a raised scar?

Mar 20, 2025 Source: Cainiu Health
Dr. Chen Lu
Introduction
In general, a raised scar refers to a keloid, and "flattening" refers to repair. Whether a keloid can be repaired using laser treatment depends on the specific circumstances. If the keloid is small and superficial, it can usually be repaired; however, if the keloid is large and deep, repair may not be possible. In daily life, injuries should be avoided to prevent scars or scar proliferation.

Generally speaking, a raised scar refers to a keloid, and "flattening" refers to its repair. Laser therapy utilizes the photothermal effect of the laser to stimulate collagen regeneration and reorganization in the skin, thereby improving the appearance of keloids. The usual reference price for laser therapy ranges from 1,000 to 5,000 yuan per session, and visible improvement is usually observed after 2-3 months. Whether laser therapy can repair a keloid depends on the specific situation. If the keloid is small and superficial, it can usually be repaired; however, if it is large and deep, repair may not be possible. Detailed analysis is as follows:

If the keloid is small and superficial, laser therapy generally achieves satisfactory results. The laser can stimulate the skin's self-repair mechanism, promoting collagen remodeling and proliferation, making the raised scar gradually flatten and approach the level of surrounding normal skin. Usually, 3-5 treatment sessions are required to achieve optimal results. After treatment, it is important to keep the wound dry and clean to avoid infection. At the same time, sun protection should be practiced to prevent pigmentation caused by ultraviolet radiation.

If the keloid is large and deep, laser therapy may not be able to repair it effectively. This is because the penetration depth of the laser is limited and it may not significantly affect deeper tissues. In such cases, surgical excision may be considered as an alternative treatment option, although it carries certain risks, such as infection, bleeding, and scar recurrence. Therefore, before opting for surgical treatment, one should fully understand the associated risks and precautions under the guidance of a physician.

In daily life, injuries should be avoided to prevent scarring or keloid formation.

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