What structures are involved in a vasectomy?

A vasectomy involves the surgical alteration of the vas deferens, which are the tubes that transport sperm from the testicles to the urethra. During the procedure, a small section of each vas deferens is cut, tied, or sealed to prevent sperm from mixing with semen during ejaculation. The surrounding structures, such as the epididymis and the scrotum, are also relevant, but the primary focus is on the vas deferens. This effectively results in male sterilization, preventing fertility while maintaining normal erectile function and ejaculation.