Condom Effectiveness

Correctly using external (sometimes called male) condoms and other barriers like internal (sometimes called female) condoms and dental dams, every time, can reduce (though not eliminate) the risk of sexually transmitted diseases (STDs), including human immunodeficiency virus (HIV) and viral hepatitis. They can also provide protection against other diseases that may be transmitted through sex like Zika and Ebola. Using external and internal condoms correctly, every time, can also help prevent pregnancy.

This website provides information for both consumers and public health professionals on the correct use of external and internal condoms and dental dams, as well external condom effectiveness for STDs, and links to additional resources.

How to Use Condoms and Other Barriers

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External (sometimes called Male) Condom Effectiveness

Additional CDC Resources for Consumers

Additional CDC Resources for Public Health Professionals

condoms