[Advances in the study of vasovasostomy under the microscope].

Approximately 10－15% of the cases of male infertility worldwide are caused by obstructive azoospermia. Vasovasostomy (VV) is a gold-standard treatment of this disease, but the success rate of conventional VV remains low for failure to anastomose the vas deferens accurately. Fortunately, microscopy makes the field of vision clearer and greatly increases the success rate of vas deferens recanalization and pregnancy. VV under the microscope, including microsurgical VV, robot-assisted microsurgical VV, and laparoscope-assisted microsurgical VV, is of great importance for the treatment of male infertility. This article reviews the progress in the study of VV under the microscope.