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Intrauterine Methods

Considering intrauterine contraception – IUS/IUD/Coil?If you are looking for a contraceptive method that you can use and forget about for longer periods of time, you may want to consider an intrauterine method. Intrauterine methods can be broadly divided into two types - hormone releasing intrauterine systems (IUS) and copper bearing 
intrauterine devices (IUD). The IUS or IUD is inserted into a woman’s womb through her vagina. Many GPs and all women’s health doctors can do this relatively easily.

Advantages of intrauterine contraception

  • Intrauterine methods are the longest acting reversible methods, which can provide contraceptive protection for up to 10 years.
  • Once inserted, there is no need to do anything right before, during, or after sex, which provides flexibility. You can completely forget about it.
  • The IUS can improve heavy and painful periods, protect against pelvic infections and cancer of the womb lining.
  • The IUD can be used as an emergency contraceptive.
  • The ability to get pregnant will return soon after the IUS or IUD is removed.

Disadvantages of Intrauterine contraception

  • The copper IUD may increase cramps and bleeding during the cycle.
  • It does not protect against STIs 

What other long-term contraceptive might suit me?

There are four long-term contraceptives. Please see below the comparison chart to see which of these option may be suitable for you.

Intrauterine Methods | Intrauterine System IUS | Intrauterine Device IUD


Intrauterine System IUS
Intrauterine System IUS

Intrauterine Device IUD
Intrauterine Device IUD

Injection
Contraceptive Injection

Implant
Contraceptive Implant

FAILURE RATE

FAILURE RATE

FAILURE RATE

FAILURE RATE

2| 1,000WOMEN(number of pregnancies after one year of use)1
6-8| 1,000WOMEN(number of pregnancies after one year of use)1
2-60| 1,000WOMEN(number of pregnancies after one year of use)1
< 1| 1,000WOMEN(number of pregnancies after one year of use)1

ADMINISTRATION

ADMINISTRATION

ADMINISTRATION

ADMINISTRATION

Placement in womb2
Placement in womb3
Injection in arm or buttock4
Placement under the skin of arm5

LENGTH OF PROTECTION

LENGTH OF PROTECTION

LENGTH OF PROTECTION

LENGTH OF PROTECTION

Up to 5 years1
Up to 5 to 10 years, depending on model3,6
12 weeks5
Up to 3 years1

RETURN TO FERTILITY

RETURN TO FERTILITY

RETURN TO FERTILITY

RETURN TO FERTILITY

No delay7
No delay7
Possible delay of up to 1 year following treatment cessation7
No delay7

MENSTRUAL BLEEDING

MENSTRUAL BLEEDING

MENSTRUAL BLEEDING

MENSTRUAL BLEEDING

  • Initially periods may be lighter or heavier, longer or shorter or absent.2
  • Infrequent or absent periods likely after several months.2
  • Bleeding and spotting days may increase in first few months.3
  • Bleeding may be heavier.3
  • Irregular and possibly lengthy bleeding or spotting or no bleeding at all.4
  • Periods may become more or less frequent, continuous or absent.5
  • May reduce or increase in intensity or duration.5

BODY WEIGHT

BODY WEIGHT

BODY WEIGHT

BODY WEIGHT

No effect7
No effect7
May cause weight gain of 2.3 – 3.6 kg in the first year4,7
No effect7

USE DURING BREASTFEEDING

USE DURING BREASTFEEDING

USE DURING BREASTFEEDING

USE DURING BREASTFEEDING

  • Yes2
  • 6 weeks after birth2
  • Yes3
  • 6 weeks after birth3
  • Yes4
  • 6 weeks after birth4
  • Yes5
  • 4 weeks after birth5

HEAVY PERIOD TREATMENT

HEAVY PERIOD TREATMENT

HEAVY PERIOD TREATMENT

HEAVY PERIOD TREATMENT

Yes8
No3
No4
No5

USE IN ESTROGEN THERAPY

USE IN ESTROGEN THERAPY

USE IN ESTROGEN THERAPY

USE IN ESTROGEN THERAPY

Yes – May be used in conjuction with estrogen as hormonal replacement therapy (HRT)8
No – Not recommended for use as hormonal replacement therapy (HRT)3

No – Not recommended for use as hormonal replacement therapy (HRT)4

No – Not recommended for use as hormonal replacement therapy (HRT)5

Go to Intrauterine System IUS
Go to Intrauterine Device IUD
Go to Injection
Go to Implant

1. Trussell J. Contraceptive failure in the United States. Contraception 83 (2011) 397–404. 2. Package leaflet: information for the user. Mirena: Corporate Patient Information. Bayer Schering Pharma. January, 2011. 3. Nova T – Copper Containing Intrauterine Device. Patient Information. Bayer Schering Pharma AG, November 2008. 4. Depo-Provera patient information leaflet. Pharmacia. August 2010. 5. Nexplanon – information for the user. Patient Information. July 2010. http://www.nexplanon.co.uk 6. Paragard T380A Prescribing Information. Duramed Pharmaceuticals, INC. 2006. http://www.paragard.com 7. Long-acting reversible contraception – the effective and appropriate use of long-acting reversible contraception. National Collaborating Centre for Women’s and Children’s Health. Commissioned by the National Institute for Health and Clinic Excellence, October 2005. Published by RCOG Press. ISBN 1-904752-18-7. 8. Mirena: The intrauterine system. Product Monograph. Bayer Schering Pharma. 2009. ISBN 978-1-904667-09-4.