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Other names: male condom

WHAT IS THE EXTERNAL CONDOM?

The external condom, also called the male condom, covers an erect penis to prevent sperm from entering the vagina upon ejaculation. It is one of the most widely used methods of contraception.

It prevents a pregnancy from occurring, but also protects against Sexually Transmitted Infections (STIs).

External condom

OVERVIEW

EFFICACY

EFFICACY

82%

FREQUENCY

FREQUENCY

EVERY TIME

EFFECT ON FERTILITY

EFFECT ON FERTILITY

NONE

BLOOD CLOT RISK

BLOOD CLOT RISK

NONE

HOW DOES THE EXTERNAL CONDOM WORK?

External condoms work by catching the sperm as it is released and stopping it from entering the vagina.

The tip of the condom has a reservoir which collects semen and prevents it from entering the vagina during ejaculation.

This stops the sperm from getting to the womb and fertilising an egg.

HOW EFFECTIVE IS THE EXTERNAL CONDOM?

Compared to modern hormonal methods, condoms are less reliable and effective in protecting against pregnancy, but they are the only method that will protect against STIs, including HIV/AIDS.

The external condom is 82% effective with typical use meaning that 18 women out of 100 using this method will become pregnant in one year. However, when used perfectly it can be up to 98% effective.

PERFECT USE*

98
%

Effective

Approximately

2 out of every 100 women
in a year will experience an unintended pregnancy.

 

* Perfect use of a contraceptive method is when it is used correctly all the time.

TYPICAL USE*

82
%

Effective

Approximately

18 out of every 100 women
in a year will experience an unintended pregnancy.

 

* Typical use is what generally happens in real life. It takes into account human error e.g. using the condom half way through intercourse.

A few things can stop the external condom from working. External condoms can break, split, or slip off the penis during sex. Vaginal medications such as thrush treatment can make the condom less effective, and some condoms cannot be used with oil-based products (such as moisturiser, lotion and Vaseline®). Condoms must not be stored in intense heat or cold or used if they are past their use by date. if you are concerned or unsure about the condom you have used, you may need to use emergency contraception (EC).

 

WHAT IS AN EXTERNAL CONDOM MADE OF?

External condoms are thin latex (rubber), polyisoprene, polyurethane sheaths that are worn on the erect penis during sexual intercourse.

PP-UN-WHC-GB-0304 July 2025