Vasectomy is a surgical procedure for male sterilization that involves cutting, blocking, or tying the vas deferens tubes to prevent sperm from entering seminal fluid and causing pregnancy. The document discusses the history, types, procedure, risks, and role of nurses in vasectomy. It notes the procedure can be done with scalpels or non-scalpel methods like using ring forceps and dissectors to access the vas deferens without incisions. After the procedure, patients should rest and avoid heavy lifting for a week while waiting for follow up sperm tests to confirm effectiveness.