However, there is a certain risk of failure, such as obstructive azoospermia due to local scar formation after surgery, or poor quality of semen produced by the testicles after surgery, so dynamic observation is needed. Generally speaking, the majority of patients are able to have normal fertility after surgical recanalization. In general, most patients can have normal fertility after the surgery. During the surgery, we need to find the broken end of the original ligated vas deferens, trim the two broken ends, and make a precise anastomosis of the vas deferens under the microscope, and recheck the semen routine after 3 months after the anastomosis, if the semen quality returns to normal and the sperm count is high and the vitality is strong, then we can have normal fertility. However, if the vas deferens is obstructed due to local scarring after surgery, no sperm or low sperm count and poor semen quality, the patient cannot have children at this time and may need to undergo recanalization surgery or vas deferens recanalization or medication to restore fertility.