If you use condoms perfectly every single time you have sex, they’re 98% effective at preventing pregnancy. But people aren’t perfect, so in real life condoms are about 85% effective — that means about 15 out of people who use condoms as their only birth control method will get pregnant each year.
The Condom: Little-Known Scientific Facts. Even other diseases against which they are most effective still present significant risks. The infection rate of syphilis drops from % to % with condom use, and that of gonorrhea drops from 15% to 8%. Condoms are even less effective against most other STDs.
Feb 24, · Overall, the World Health Organization says condoms have a 2% failure rate when used perfectly and consistently. But the typical failure rate is much higher, at 15 Author: Jennifer Warner.
Again, some of the most striking differences in failure rates were linked to experience with the method: The male condom breakage rate fell from 7% among first-time users to 2% among those who had used the method at least 15 times; the slippage rate dropped from 3% to %.