The East Division of the First Affiliated Hospital of Sun Yat-Sen University 1 article published in JoVE Medicine Vessel-Sparing Microsurgical Longitudinal Intussusception Vasoepididymostomy to Treat Epididymal Obstructive Azoospermia Ming-kuan Zhou*1, Jin-tao Zhuang*1, Wu-yuan Liao2, Shi-ying Long3, Xiang-an Tu1 1Department of Urology, The East Division of the First Affiliated Hospital of Sun Yat-Sen University, 2Department of Urology, The First Affiliated Hospital of Sun Yat-Sen University, 3Center for Reproductive Medicine, Affiliated Hospital of Guilin Medical University The present protocol describes a vessel-sparing, longitudinal intussusception vasoepididymostomy using readily available single-needle sutures in China, a safe and effective procedure, which may improve patients' patency and natural pregnancy rates.