Purpose:To report a case of retinal hemorrhage after a dexamethasone (Ozurdex ® , Allergan, Irvine, CA, USA) intravitreal implant injection in macular edema (ME) secondary to central retinal vein occlusion (CRVO). Case summary: A 60-year-old woman visited our hospital for ME secondary to CRVO in the right eye. Intravitreal bevacizumab injection and vitrectomy was conducted three times, but ME did not improve. Then, dexamethasone intravitreal implant was injected without any problems. Right after the dexamethasone intravitreal implant injection, retinal hemorrhage (2 disc diopter size) was observed in the infero-temporal area on fundus examination. Retinal hemorrhage completely disappeared 1 month after injection without other treatment.