The contraceptive implant is a flexible rod about the size of a matchstick. It’s inserted just under the skin of your upper arm and slowly releases the synthetic hormone progestogen. It can be left in place for up to 5 years. It’s a very effective contraceptive, and a good option if you want long-lasting contraception that you don’t have to think about every day.

Hormones

Progestogen

Frequency

Fit and forget. Can be used for up to 5 years.

Effectiveness

Over 99%

STI protection

No

Periods

Changes are hard to predict. It can cause irregular bleeding.

Getting started

You’ll need to go to your GP or a clinic to have the implant fitted.

In May 2026, the College of Sexual and Reproductive Healthcare (CoSRH) updated the licensing for the contraceptive implant. They approved it's use for up to 5 years, as evidence had shown it can effectively prevent pregnancy for this time. Before this, an implant could be used for up to 3 years.

More information

To find out more about the implant works and what happens when it’s fitted, head to SH:24.

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