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{{main article|Safe sex}}
[[condom|Male]] and [[female condom]]s provide significant protection against [[sexually transmitted disease]]s (STDs) when used consistently and correctly. They also provide some protection against [[cervical cancer]].<ref>{{cite journal | vauthors = Winer RL, Hughes JP, Feng Q, O'Reilly S, Kiviat NB, Holmes KK, Koutsky LA | title = Condom use and the risk of genital human papillomavirus infection in young women | journal = The New England Journal of Medicine | volume = 354 | issue = 25 | pages = 2645–54 | date = June 2006 | pmid = 16790697 | doi = 10.1056/NEJMoa053284 | doi-access = free }}</ref><ref name="Hogewoning2003">{{cite journal | vauthors = Hogewoning CJ, Bleeker MC, van den Brule AJ, Voorhorst FJ, Snijders PJ, Berkhof J, Westenend PJ, Meijer CJ | title = Condom use promotes regression of cervical intraepithelial neoplasia and clearance of human papillomavirus: a randomized clinical trial | journal = International Journal of Cancer | volume = 107 | issue = 5 | pages = 811–6 | date = December 2003 | pmid = 14566832 | doi = 10.1002/ijc.11474 | doi-access = free }}</ref> Condoms are often recommended as an adjunct to more effective birth control methods (such as [[IUD]]) in situations where STD protection is also desired.<ref name=DualProtection>{{cite journal | vauthors = Cates W, Steiner MJ | title = Dual protection against unintended pregnancy and sexually transmitted infections: what is the best contraceptive approach? | journal = Sexually Transmitted Diseases | volume = 29 | issue = 3 | pages = 168–74 | date = March 2002 | pmid = 11875378 | doi = 10.1097/00007435-200203000-00007 | s2cid = 42792667 | doi-access = free }}</ref>
Other barrier methods, such as [[Diaphragm (contraceptive)|diaphragms]] may provide limited protection against infections in the upper genital tract. Other methods provide little or no protection against sexually transmitted diseases.
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| [[Today sponge]], the sponge || style="background:#fda;"| {{sort|014.00|14}} || style=background:#ffffc0 | {{sort|009.00|9}} || Barrier & spermicide || Vaginal insertion || {{sort | 00.030 | Every act of intercourse}}
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| {{color|gray|2002<ref name=leaapproval/> cervical cap and [[spermicide]] (discontinued in 2008) used by parous}}<ref name=lea>{{cite journal | vauthors = Mauck C, Glover LH, Miller E, Allen S, Archer DF, Blumenthal P, Rosenzweig A, Dominik R, Sturgen K, Cooper J, Fingerhut F, Peacock L, Gabelnick HL | title = Lea's Shield: a study of the safety and efficacy of a new vaginal barrier contraceptive used with and without spermicide | journal = Contraception | volume = 53 | issue = 6 | pages = 329–35 | date = June 1996 | pmid = 8773419 | doi = 10.1016/0010-7824(96)00081-9 | display-authors = 8 | doi-access = free }}</ref><ref name=lea group=note>In the effectiveness study of Lea's Shield, 84% of participants were parous. The unadjusted pregnancy rate in the six-month study was 8.7% among spermicide users and 12.9% among non-spermicide users. No pregnancies occurred among nulliparous users of the Lea's Shield. Assuming the effectiveness ratio of nulliparous to parous users is the same for the Lea's Shield as for the Prentif cervical cap and the Today contraceptive sponge, the unadjusted six-month pregnancy rate would be 2.2% for spermicide users and 2.9% for those who used the device without spermicide.</ref><ref name=parous group=note/>
| [[Lea's Shield]] || style="background:#fda;"| {{sort|015.00|15}} <br />(1 of 6) || style=background:#dcdcdc | {{sort|100.00|no data}} || Barrier + spermicide || Vaginal insertion || {{sort | 00.030 | Every act of intercourse}}
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