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自从采用口服避孕剂和塑料宫内避孕器以来,其他避孕型式的应用已经普遍衰退。在美国,衰退最厉害的是阴茎套和阴道隔膜,而在1960年以前通用的阴道杀精子剂也受到了影响。1961年气溶胶泡沫避孕剂开始使用后,此种制品已成为美国最流行的不带阴道隔膜的阴道避孕剂。在1965——1970年之间,妇女使用泡沫剂的比例不断增加,在末后一年,估计使用泡沫剂的妇女数目与使用宫内避孕器者一样多。
Since the introduction of oral contraceptives and plastic IUDs, other forms of contraception have generally declined. In the United States, the downturn was most pronounced with the condom and vaginal septum, and the vaginal spermicide used until 1960 was also affected. When the aerosol foam contraceptive was first introduced in 1961, it became the most popular vaginal contraceptive in the United States without vaginal septum. Between 1965 and 1970, the proportion of women using foam was on the rise, with as many women estimated to use foams in the year to follow as many as women using IUDs.