Abstract
                 The quality-switched 1064-nm neodymium-doped yttrium aluminum garnet (QS 1064-nm Nd:YAG) laser is widely used  to treat many skin conditions. Originally, it was used for the treatment of pigmented lesions such as nevus of Ota and tattoo  removal. Furthermore, it is widely used in skin rejuvenation and melasma treatment. In daily practice in Saudi Arabia  and the Middle East, it is commonly used for hair removal because of its good efficacy and safety profile. According to  the advances in the use of QS 1064-nm Nd:YAG, more complications are seen. Hypopigmentation has been reported in  multiple case reports as one of the complications after tattoo removal, melasma treatment, and skin rejuvenation. In this  case series, we are presenting four cases of hypopigmentation secondary to hair removal by QS 1064-nm Nd:YAG. Three  cases were facial hypopigmentation, and one was in the arms. In conclusion, there are no identified risk factors and no  standardized measures to avoid this undesired complication.