The implant is a small rod that is inserted under the skin in your upper arm.
There is a small procedure required to fit the implant.
Once inserted, the implant will slowly release the hormone, progestogen, which prevents you from releasing an egg each month (ovulation), thickens the cervical mucus to make it harder for sperm to pass through into the womb, and thins the lining of the womb.
The implant is more than 99% effective and can remain in place for three years.
Most women can use the implant.
It may not be suitable for you if you think you might be pregnant, do not want your periods to change, take certain medicines, have unexplained bleeding, have or have had heart disease or stroke, have liver disease, have or have had breast cancer.
You can have the implant fitted at any time in your cycle so long as you are not pregnant.
If it is fitted after the first five days of your cycle it will take seven days to start working so you will need to abstain or use condoms until this point.
The implant can also be fitted after birth, abortion or miscarriage.
The implant works for three years.
It is safe to use if you cannot have oestrogen containing contraception and it can be used whilst breastfeeding with no effect on fertility.
In some cases, it can reduce heavy periods or period pain.
In some cases, users may experience the following side effects:
- breast tenderness
- mood changes
- lighter, irregular or no periods