将化学制剂放入阴道避孕已有数千年历史,除性交中断外,阴道内使用化学制剂可能是最古老的方法。古埃及人用精磨的金合欢穗混以蜂蜜和海枣。用成束的纤维在性交前插入阴道。在有专卖的杀精剂前,使用各种家庭用的化学制剂在性交前放入阴道或性交后灌洗。一般用品还有稀释醋、浓盐水或稀释柠檬汁。直到今天,虽然已有可乐(cola)引起腹膜炎的报道,仍有用可乐作性交后灌洗的。本世纪30年代专卖的杀精剂问世,在口服避孕药和安全有效的宫内节育器问世之前,用杀精剂避孕的甚为普及。随着一些有效的、性交不受约束的方法的增加,使用杀精剂急剧下降,目前大约有 Putting chemicals in vaginal contraception has been around for thousands of years and using chemicals intravaginally is probably the oldest method except for intercourse interruptions. Ancient Egyptians used finely ground acacia spikes mixed with honey and dates. Use bunched fibers to insert vagina before sexual intercourse. Before monopoly spermicide, use a variety of household chemicals before sexual intercourse into the vagina or sexual intercourse after lavage. There are general supplies of diluted vinegar, brine or diluted lemon juice. Until today, there have been reports of peritonitis caused by cola, which is still lavaged by cola after sex. Thirty-century monopoly spermicide came out in the oral contraceptives and safe and effective before the advent of the IUD, spermicide contraception is very popular. With the number of effective, non-coercive methods increasing, the use of spermicides has dropped dramatically, with about