3. Condoms, used correctly, do a good job in preventing:
Correctly used condoms work well to prevent the transmission of STDs that are transmitted via semen or body fluids, which are gonorrhea, chlamydia, HIV, and trichomonas. Condoms still have a failure rate of 11% when used correctly, and in average usage, that failure rate is closer to 20% because of inconsistent use, breakage and putting on the condom after initiating sexual intimacy. Condoms cannot work to prevent the spread of STDs that are transmitted from direct contact in areas beyond where a condom covers, such as herpes, HPV, syphilis and pubic lice.