The fastest way to sterilize a man is to perform a vasectomy.
Currently, the main method of male sterilization is surgical ligation, and there are many types of surgery, such as vasectomy, vasectomy without vasectomy, and vasectomy with blockage of the vas deferens.
Vasectomy is performed by making an incision in the skin of the scrotum on each side of the body, finding the vas deferens through the surgical incision, separating a section of the vas deferens, ligating the two ends of the vas deferens with sutures, and then cutting it off in the middle, and then the surgery is completed.
At present, the fastest way is vasectomy, because it is accurate and reliable, and if there is a plan to have a child, it can be reversed, but the success rate is not high, so it is important to think carefully about vasectomy.