A vasectomy is a low-risk procedure that provides excellent (permanent, though sometimes reversible) birth control. In an effort to help readers who've written it about it, and anyone else who is thinking this through, today is a vasectomy deep dive. Want more on pregnancy and parenting? Subscribe to the ParentData newsletter for free at ParentData.org. You can also become a paid subscriber for access to the full ParentData archive (searchable by topic) and an extra newsletter every week.