The intrauterine devices (IUDs) now available offer almost available offer almost complete protection from pregnancy. Some models are effective longer than any other reversible family planning method. Correctly inserted, IUDs are safe for women at low risk of sexually transmitted disease. In fact, because IUDs prevent pregnancy so well, they save many lives.
目前可用的宫内节育器（IUD）几乎能提供完全的避孕保护。一些型号的有效期比任何其他可逆性计划生育方法都长。正确插入后，对于性传播疾病低风险的女性来说，宫内节育器是安全的。事实上，由于宫内节育器避孕效果极佳，它们挽救了许多生命。
