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How effective are condoms in preventing pregnancy?

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Condoms are very good at preventing pregnancy if they're used correctly. They're effective about 85% of the time. That means for every 100 people who have sex using just a condom, 15 will have an accidental pregnancy.

From: How to Use a Condom WebMD Medical Reference

SOURCES:

CDC: "Condom Fact Sheet in Brief."

Nemours Foundation: "Condom."

Avert: "Using Condoms, Condom Types and Sizes."

Kliegman, R. 19th ed., Saunders Elsevier, 2011. Nelson Textbook of Pediatrics,

Lara-Torre, E. , March 2009. Obstetrics and Gynecology Clinics

UCSF: "How do you use a condom?"

Reviewed by Dan Brennan on October 18, 2017

SOURCES:

CDC: "Condom Fact Sheet in Brief."

Nemours Foundation: "Condom."

Avert: "Using Condoms, Condom Types and Sizes."

Kliegman, R. 19th ed., Saunders Elsevier, 2011. Nelson Textbook of Pediatrics,

Lara-Torre, E. , March 2009. Obstetrics and Gynecology Clinics

UCSF: "How do you use a condom?"

Reviewed by Dan Brennan on October 18, 2017

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What kind of condom is best for preventing sexually transmitted diseases (STDs)?

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