• Works for three years
  • You don’t have to prepare for or interrupt sex
  • You don’t have to remember to take a pill everyday
  • You don’t need a vaginal examination
  • May reduce heavy or painful periods after first year
  • Suitable for those that can’t take oestrogen
  • Fertility returns to normal when removed
  • May also give some protection against cancer of the womb.

The implant is a small, flexible plastic tube that sits under the skin of your upper arm and releases the progestogen hormone. It is long-acting and reversible, so you can take it out if you want to get pregnant.

It is the fourth most popular method of contraception in the UK, and more common amongst women under the age of 35.

How it works

Things to consider

The implant does not protect you from STIs. You should use a condom as well if you think you are at risk of an STI.

A small procedure is required to fit and remove the implant, this only takes a few minutes, using a local anaesthetic.

The implant can change your periods significantly. This varies from woman to woman – you may have no bleeding at all, or more prolonged, more infrequent or irregular bleeding. This is not harmful but may be inconvenient.


Most women can use the implant, but your clinician will ask about your family and medical history to determine whether or not the implant is the best method for you.

The implant is not suitable for women who:

  • Are pregnant
  • Have unexplained irregular bleeding
  • Want regular periods
  • Take certain medicines.

It also may not be suitable for women who have or have had certain health conditions.

Side effects & risks

Common Rare
Short term:

Spotty skin, breast tenderness, nausea, headaches, loss of sex drive, changes in mood.

The area of skin where the implant has been fitted can become infected. The skin will be cleaned and may be treated with antibiotics.

Long term:

Periods may change significantly: bleeding may be prolonged or infrequent, or you will have no bleeding.

If short term symptoms do not go after a few months, or if you have prolonged or severe headaches, you should talk to your sexual health clinic or GP.


Local anaesthetic causes a complete loss of pain sensation to a specific area of your body without making you lose consciousness.

It works by blocking the nerves from the affected part of your body so that signals can't reach your brain. You will not be able to feel any pain during the procedure but you may still feel some pressure or movement.

It only takes a few minutes to lose feeling in the area where local anaesthetic is given. Your doctor will make sure the area is fully numb before starting the procedure.

It can take a few hours for local anaesthetic to wear off and for full feeling to return. You should be careful not to damage the area during this time.

Thumb up 18   Thumb down 1

If the implant is fitted during the first five days of your menstrual cycle, you will be immediately protected against becoming pregnant. If it is fitted on any other day of your menstrual cycle, you will not be protected against pregnancy for up to seven days, and should use another method, such as condoms.

Thumb up 89   Thumb down 6

Your fertility should return to normal as soon as the implant is removed.

Thumb up 37   Thumb down 11

Some medicines make the implant less effective (including those used to treat epilepsy, HIV and TB, and the herbal medicine St John’s Wort). Ask your GP, clinician or pharmacist and read the information that comes with your medicine.

Always tell your doctor that you have an implant if you are prescribed any medicines.

Thumb up 19   Thumb down 3

A local anaesthetic is used to numb the area so it won’t hurt.

The small wound made in your arm is closed with a dressing and does not need stitches. There may be some bruising, tenderness and swelling for a couple of days afterwards.

Thumb up 56   Thumb down 3

No. But there may be some visible bruising for a couple of days after having the implant fitted.

Thumb up 18   Thumb down 1

When correctly inserted, the implant lies in the tissue just below the surface of the skin. This holds it in position and it should not get lost. Because the implant is made of a flexible plastic, it is unlikely to break inside the user’s arm.

Thumb up 278   Thumb down 58

Yes, the implant can be fitted after having a baby.

Thumb up 22   Thumb down 5

An implant can be used safely while you are breastfeeding and will not affect your milk supply.

Thumb up 18   Thumb down 1

You may not be able to use the implant if you have or have had any of the following:

  • Severe heart disease
  • Migraines
  • Breast cancer
  • Disease or tumours in the liver
  • Unexplained vaginal bleeding
  • Systemic lupus erythematosus.

Speak to your GP about whether it is suitable for you.

Thumb up 17   Thumb down 0

Implants will no longer be effective after three years and they should be removed at this point. However, they will not cause any immediate harm if left place longer than three years.

Thumb up 119   Thumb down 6

If you're 45 or older when you have the implant fitted, it can be left until you reach menopause or you no longer need contraception.

Thumb up 36   Thumb down 3

The hormone progesterone in the implant has important contraceptive effects but also is associated with irregular bleeding.

Thumb up 57   Thumb down 8

You can have the implant removed at any time.

Thumb up 47   Thumb down 3

Where can I get it?

The implant is free on the NHS. It can be fitted by most sexual health clinics and some GPs. Talk to your clinician about whether it’s right for you. Your clinician will be able to tell you where you can get it fitted nearby, if they can’t do it themselves.

The implant can be fitted at any time during your monthly menstrual cycle, as long as you're definitely not pregnant.