Prophylactic  vasectomy.
D000368:Aged; D004823:Epididymitis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011468:Prostatectomy; D011470:Prostatic Hyperplasia / Q000628:therapy*; D014649:Vas Deferens / Q000601:surgery*