Q-yahinduye Nd: YAG laser irasa urumuri hamwe nuburebure bwihariye bwumubyimba mwinshi, bityo urumuri rwinjira mumyenda gusa kuri nanosekond.Umucyo winjizwa na pigmentation hanyuma bikavamo guturika ako kanya, iryo ni ihame ryo guturika.Ibice bya pigmentation bimenaguwe mo ibice, bimwe birashobora gusohoka mu ruhu naho ibindi bigabanywamo uduce duto dushobora gutwarwa na fagocytes hanyuma bigakurwaho na sisitemu ya lymphique.