When considering a vasectomy, it’s important to understand that failures can occur. CDC research has estimated there is a probability of 11 failures per 1,000 procedures over 2 years; half of the failures occurred in the first three months after the vasectomy, and no failures occurred after 72 weeks. 1 CDC research also examined regret among women whose partner underwent a vasectomy. 2 In interviews with female partners of men who received vasectomies, CDC found that while most women did not regret their husband's vasectomies, the probability of regret over 5 years was about 6%. This is why it is important to know facts about this and other permanent forms of birth control before making a decision.
While the overall share of teens using contraception at first sex has not changed significantly, the use of some forms of highly effective contraceptive methods is increasing. The share of sexually active teen girls who have used emergency contraception (., the morning-after pill) rose from 8% in 2002 to 22% in 2011-13. And a CDC analysis of the roughly 600,000 low-income teens who use a Title X Family Planning program for contraception found that the use of long-acting reversible contraceptives (LARCs), such as IUDs and implants – which are considered more effective than other means of contraception – rose from % in 2005 to % by 2013.