The contraceptive implant is a small flexible rod that is inserted just under the skin surface of the upper arm by a trained professional. It lasts for three years. It slowly releases the hormone progestogen into the body, stopping the release of an egg from the ovary. This hormone also thickens the mucus at the entrance of the womb (making it harder for sperm to move through) and thins the lining of the womb (so that the womb is less likely to accept a fertilised egg). It is more than 99% effective at preventing pregnancy if implanted correctly.

The contraceptive implant can be fitted in most cases. However, it might not be suitable if you:

• Think you might be pregnant.
• Want to keep having regular periods.
• Have bleeding in between periods or after sex.
• Have breast cancer or have had in the past.
• Have cirrhosis or liver tumours.

• It works for three years.
• It does not interrupt sex.
• It is an option if you cannot use oestrogen based contraception (for example, the combined contraceptive pill, contraceptive patch or vaginal ring).
• The implant is safe to use while breastfeeding.
• You do not have to remember to take a pill every day.
• Your fertility should return to normal rapidly once the implant is removed.
• The implant may reduce heavy periods or painful periods after the first year of use.
• You should be able to carry out normal activities after the contraceptive implant has been inserted.

• Your periods may change significantly while using the implant. Around 20% will have no bleeding and almost 50% will have infrequent bleeding and 25% may experience prolonged bleeding. Bleeding patterns may also vary over time. Your clinic is able to help by providing additional medication if you have prolonged bleeding.
• Side effects may include headaches, acne, nausea, breast tenderness, and changes in mood. These side effects are usually temporary.
• In rare cases, the area of skin where the implant has been fitted may become infected. If this happens, the area will be cleaned and may be treated with antibiotics.
• Some medicines can reduce the implant’s effectiveness including some HIV medications, medication for epilepsy, complementary remedies such as St John’s Wort, and some TB treatments.

You can get the contraceptive implant for free through the NHS from our clinics or most GP surgeries.

You can use the service finder to find a service near you.

Important Information After Your Implant Has Been Inserted

Important Information After Your Implant Has Been Removed