What is an IUS?

What is an IUS?

The IUS is a small T-shaped plastic device, which contains the hormone progestogen. A trained doctor or nurse fits the IUS into the womb.

The most commonly fitted IUS device in England is the Mirena.

What can I expect after an IUS is fitted?

What can I expect after an IUS is fitted?

  • You may expect some staining or fresh bleeding for a few days after an IUS is fitted.
  • You may have some period type pain or cramps for a few days. Take any simple pain killer that you would take for period pain.
  • Irregular bleeding or longer bleeding for the first few months.
  • After the first few months most women with a Mirena fitted find that their periods become lighter or stop all together.
How soon does the IUS work?

How soon does the IUS work?

  • You can rely on your IUS for contraception as soon as it is fitted (unless the doctor has advised you differently).
How will I know the Mirena is still in place?

How will I know the Mirena is still in place?

  • The doctor or nurse can teach you to check the threads if you would like to know how to do this.
How often do I need to come back?

How often do I need to come back?

  • The doctor or nurse may advise you to return to have your IUS checked 6 weeks after it is fitted.
  • Information from the World Health Organisation recommends that annual checks are not needed. You should come back for a check if you are worried or having a problem.
What problems should I be concerned about?

What problems should I be concerned about?

Please contact the clinic or see the doctor if:

  • You have very heavy bleeding.
  • You have severe lower abdominal pain.
  • You have heavy, smelly vaginal discharge.
  • You are worried that your IUS is coming out.
  • You think you may be pregnant.
How long can an IUS stay in place?

How long can an IUS stay in place?

The different IUS devices have different lengths of use. They are as follows:

  • Mirena – can stay in for 5 years
  • Kyleena – can stay in for 5 years
  • Levosert – can stay in for 5 years
  • Jaydess – can stay in for 3 years
How is it taken out?

How is it taken out?

A trained doctor or nurse can take out your IUS at any time. This is usually a simple procedure. If you are not going to have another IUS put in and you do not want to become pregnant, we would advise you to use an extra contraceptive method such as a condom for 7 days before the IUS is taken out. Your usual fertility returns as soon as the IUS is taken out

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Accessing our service during the COVID pandemic

How to access our service:

We have now implemented a telephone triage system for all of our clinics. This system will be in place for the duration of the pandemic. Please contact our services to access this triage system. Our central telephone number is 0300 303 3989.

If you are experiencing symptoms of Coronavirus please do not attend the clinic. Clear advice for people with symptoms of coronavirus is available at nhs.uk/coronavirus .

Advice from our service:

We have updated information on the provision of routine contraception during this pandemic here.

More details on the fitting of LARCs (coils and implants) at our service can be found here

If you need the combined contraceptive pill please try (if you can) to get updated measurements of your height, weight and blood pressure before calling us.

There is also specific advice on coronavirus available for People Living with HIV here, and for pregnant women here

Self-requested Sexual Health screening by post is available for for under 25s only - more info here

For others with testing requirements please contact the service on 0300 303 3989.

Alternative provision:

Please be aware that we may have to cancel, rearrange or shut clinical services in response to changing clinical and staffing pressures created by the Coronavirus pandemic. 

If you are struggling to access sexual health services, alternatives may be available:

  • Emergency Contraception - at your local pharmacy - more info
  • Contraceptive pills and LARC procedures - obtained from your GP
  • HIV postal testing - available to at-risk groups for a small fee -  more info
  • HIV PEPSE - available via A+E departments - more info
  • Condoms by post (for gay and bisexual men only) - more info