Northwest Women’s and Children’s Hospital 1 article published in JoVE Medicine A Modified Vessel-Sparing Microsurgical Vasoepididymostomy Liang Zhou1, Xingzhe Ji1, Lei Wang1 1Assisted Reproduction Center, Northwest Women’s and Children’s Hospital Here, we present a protocol to preserve the vasal vessels in microsurgical vasoepididymostomy. The surgical security is enhanced by preserving the vasal vessels using a retrograde-anterograde dissociation and fixing the vasal vessels.