 Condoms are widely recommended for the prevention of sexually transmitted infections ( STIs ) . They have been shown to be effective in reducing infection rates in both men and women , but not eliminating it . While not perfect , the condom is effective at reducing the transmission of organisms that cause AIDS , genital herpes , cervical cancer , genital warts , syphilis , chlamydia , gonorrhea , and other diseases . Condoms are often recommended as an adjunct to more effective birth control methods ( such as IUD ) in situations where STD protection is also desired . 
 Condoms are widely recommended for the prevention of sexually transmitted infections ( STIs ) . They <a href='been_done' title='1'><mark>have</mark></a> been shown to be effective in reducing infection rates in both men and women , but not eliminating it . While not perfect , the condom <a href='drop_aux' title='2'><mark>is</mark></a>effective at reducing the transmission of organisms <a href='null_relcl' title='3'><mark>that</mark></a>cause AIDS , genital herpes , cervical cancer , genital warts , syphilis , chlamydia , gonorrhea , and other diseases . Condoms are often recommended as an adjunct to more effective birth control methods ( such as IUD ) in situations where STD protection is also desired . 
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