ABSTRACT
Objective To explore the clinical efficacy and side effects of Q 532 laser in the treatment of recurrent café-au-lait spots.Methods Collection period was from January 2018 to January 2019.Fifty-five patients with recurrent café-au-lait spots after 2-3 times of Q-switched 755 laser treatment were selected and then treated with Q-switched 532 laser.Treatment was given once every 3-6 months.The appropriate treatment parameters were selected according to the patient's condition.The effects of age,gender,size,morphology and margin of the lesion on the treatment were observed.Results Among the 55 patients treated with Q 532 laser after 2 to 5 treatments,19 cases were cured,13 cases markedly effective,15 cases moderately effective,8 cases invalid with a total effective rate of 85 ％.Conclusions Q 532 laser is an effective and safe treatment for recurrent Café-au-lait spots.