Yes: No method (besides abstinence) is 100% effective at protecting against sexually transmitted infections, including hiv. However, using condoms correctly (see box for instructions) is a great way of dramatically lowering the chance of catching something. It is always best to ensure your sexual partners have had a recent negative std check.
Answered 10/4/2016
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Safer, not foolproof: Properly used male condoms, with no obvious breakage, are close to 100% effective vs STDs transmitted by fluids (gonorrhea, chlamydia, HIV, hep B). They work less well against skin to skin transmission (HSV, HPV, syphilis), because of conact above the condom--but still much better than no condom. And infection through microscopic leaks or pores is an urban myth! No need for "water test" after sex.
Answered 11/29/2014
3.6k views
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