The most important reason is the Koebner phenomenon. The Koebner phenomenon is a condition in which new vitiligo appears on an area of skin after physical irritation or injury.
Therefore, if the skin is excessively stimulated during laser or IPL procedures, there is a possibility that new lesions may develop even in areas that previously had no vitiligo.
In particular, it is important to adjust the intensity of the procedure to prevent skin damage such as blisters, scabs, or oozing after the procedure.
Before the procedure, it is advisable to check the following.
- Whether vitiligo has remained stable for at least 1 year
- Whether there have been any recent Koebner phenomenon or other signs of activity
- Whether a test procedure can be performed on a small area first, if necessary
