The Second Affiliated Hospital of Kunming Medical University 1 article published in JoVE Medicine Treatment of Ejaculatory Duct Obstruction by Seminal Vesiculoscopy Assisted Flow Modification Biao Dong*1, Xiaotao Li*1, Zhuanxin Jiang1 1Department of Andrology, The Second Affiliated Hospital of Kunming Medical University This protocol introduces the clinical application of seminal vesicle endoscopy combined with holmium laser in the treatment of ejaculatory duct obstruction caused by ejaculatory duct cyst.