Discussion
When can LNG-IUD be inserted
Box 1: Criteria for reasonably excluding pregnancy
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Healthcare practitioners can be reasonably certain that an individual is not currently pregnant if any one or more of the following criteria are met and there are no symptoms or signs of pregnancy:
* See UKMEC 2016 and FSRH Guideline Contraception after Pregnancy for recommendations regarding use of combined hormonal contraception after childbirth. |
Table 1: Starting intrauterine contraception (no recent hormonal contraception) [from CoSRH Clinical Guideline: Intrauterine contraception (March 2023)]
This table will require scrolling on a mobile, to prevent you from missing any important information
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Current Situation |
Timing of Insertion of LNG-IUD |
Additional Precautions Required |
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No recent hormonal contraception and no recent pregnancy |
Any time in a natural menstrual cycle if reasonably certain the individual is not pregnant* or at risk of pregnancy |
Yes, for 7 days (unless inserted in the first 5 days† of the menstrual cycle) |
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Cu-IUD within licensed duration of use |
Any time if no UPSI within the last 7 days (otherwise defer until no UPSI for 7 days) |
Yes, for 7 days (unless inserted in the first 5 days† of the menstrual cycle) |
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Cu-IUD past licensed duration of use |
Any time in a natural menstrual cycle if reasonably certain the individual is not pregnant* or at risk of pregnancy |
Yes, for 7 days (unless inserted in the first 5 days† of the menstrual cycle) |
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Post partum (vaginal birth or Caesarian section, breastfeeding or non-breastfeeding |
Within 48hrs after childbirth |
No |
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From 4 weeks after childbirth, certain that the individual is not pregnant* or at risk of pregnancy |
Yes, for 7 days (unless inserted in the first 5† days of the menstrual cycle or criteria for LAM are met) |
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Following abortion or miscarriage |
Post-surgical abortion or surgical management of miscarriage: ideally insert at the time of the procedure Post-medical abortion or miscarriage: IUC can be inserted any time after expulsion of pregnancy |
If an LNG-IUD is inserted after day 5† post abortion or miscarriage, additional precautions are required for 7 days |
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Following use of oral emergency contraception |
Should not be inserted following administration of oral EC until pregnancy can be excluded by a high-sensitivity pregnancy test taken ≥21 days after last UPSI |
Condoms or bridging contraception until LNG-IUD can be inserted |
LAM (Lactation amenorrhoea method); UPSI (unprotected sexual intercourse)
* See Box 1 for how to exclude pregnancy
† Summary of Product Characteristics suggests this applies also to days 6 and 7 of a natural cycle
Table 2: Switching to intrauterine contraception from a hormonal contraceptive method
This table will require scrolling on a mobile, to prevent you from missing any important information
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Current Situation |
Timing of Insertion |
Additional Precautions Required |
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CHC use |
Weeks 2 or 3 of CHC use (or subsequent weeks of continuous CHC use) or Day 1 of the HFI |
No, providing CHC used correctly |
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After day 1 of the HFI or in week 1 of CHC use |
If no UPSI since the start of the HFI – use condoms for 7 days or restart/continue CHC until used correctly for 7 days after HFI OR If UPSI since the start of the HFI – restart/continue CHC use for 7 days |
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POP (traditional) |
At any time if POP has been used correctly |
Continue POP for 7 days or use condoms for 7 days |
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POP (desogestrel) |
At any time if POP has been used correctly |
No |
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POP (drospirenone) |
During HFI (placebo pills, days 25– 28) assuming prior correct use of active pills or Days 1–7 of active pills (taken correctly) after HFI |
If no UPSI since start of the HFI – use condoms for 7 days OR If UPSI since the start of the HFI – restart/continue DRSP POP until 7 consecutive active pills taken |
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Days 8–24 of active pills (taken correctly) |
No |
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ENG implant within 3 years after insertion |
Any time |
No |
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ENG implant in situ for 3-4 years |
Any time if PT negative |
Yes (7 days) Repeat PT 21 days after last UPSI |
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ENG implant in situ for >4 years and no UPSI in the last 21 days |
Any time if PT negative |
Yes (7 days) |
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ENG implant in situ for >4 years and UPSI in the last 21 days |
LNG-IUD cannot be inserted until pregnancy can be excluded* |
Consider PT and EC. Bridge with alternative contraception until pregnancy can be excluded by a high sensitivity PT taken ≥21 days after last UPSI |
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Progestogen-only injectable (DMPA) ≤14 weeks post-injection |
Any time |
No |
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Progestogen-only injectable (DMPA) >14 weeks post-injection and no UPSI since 14 weeks |
Any time |
Yes (7 days) |
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Progestogen-only injectable (DMPA) >14 weeks post-injection AND UPSI since 14 weeks post-injection, all of which took place ≥21 days ago |
Any time if PT negative |
Yes (7 days) |
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Progestogen-only injectable (DMPA) >14 weeks post-injection AND UPSI since 14 weeks post-injection, some of which took place within the last 21 days |
LNG-IUD cannot be inserted until pregnancy can be excluded |
Consider PT and EC. Bridge with alternative contraception until pregnancy can be excluded by a high-sensitivity PT taken ≥21 days after last UPSI |
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52 mg LNG-IUD in situ for < 8 years OR 19.5 mg LNG-IUD in situ for < 5 years OR 13.5 mg LNG-IUD in situ for < 3 years |
Any time |
No Ideally abstain/use condoms for 7 days prior to change in case new device can not be inserted |
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52 mg LNG-IUD in situ for >8 years† AND no UPSI within the last 21 days OR 19.5 mg LNG-IUD in situ for >5 years AND no UPSI within the last 21 days OR 13.5 mg LNG-IUD in situ for >3 years AND no UPSI within the last 21 days |
Any time if PT negative on day of replacement |
Yes (7 days) |
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52 mg LNG-IUD in situ for >8 years† AND UPSI within the last 21 days OR 19.5 mg LNG-IUD in situ for >5 years AND UPSI within the last 21 days OR 13.5 mg LNG-IUD in situ for >3 years AND UPSI within the last 21 days |
LNG-IUD cannot be inserted until pregnancy can be excluded |
Consider PT and EC. Bridge with alternative contraception until pregnancy can be excluded by a high-sensitivity PT taken ≥21 days after last UPSI |
CHC, combined hormonal contraception; Cu-IUD, copper intrauterine device; DMPA, depot medroxyprogesterone acetate; DRSP, drospirenone; ENG, etonogestrel; HFI, hormone-free interval; IUC, intrauterine contraception; POP, progestogen-only pill; PT, pregnancy test; UPSI, unprotected sexual intercourse.
* See Box 1 for how to exclude pregnancy
† Recommendations for the 52 mg LNG-IUD insertion relate to devices inserted before age 45 years. If replacing a 52 mg LNG-IUD that has been in situ for >6 years but was inserted after age 45 years, follow guidance for replacing a 52 mg LNG-IUD that has been in situ for <6 years
Insertion Checklist
Intrauterine contraception pre-insertion checklist for the minimum criteria that should be met prior to insertion.
The clinician inserting the intrauterine contraception (IUC) should ensure that (as a minimum) the following criteria are met prior to insertion:
- Individual assessed as medical eligible
- Checked there are no indications for IUC to be inserted in an alternative setting/service
- Checked there are no allergies to IUC content or local anaesthetic
- Checked it is a suitable time to insert and any requirement for additional contraception/follow up pregnancy testing
- Considered and offered sexually transmitted infection (STI) testing and/or cervical screening as appropriate
- Individual advised about:
- Different IUC types available
- Contraceptive effectiveness and time to effect (including need for additional contraception and/or follow up pregnancy test)
- Duration of use (for contraception and other indications)
- Potential bleeding patterns
- Other potential side effects and risks
- Insertion procedure and associated risks including: pain, infection, expulsion, perforation, failure, ectopic pregnancy, non-visible threads
- Analgesia options and option to stop at any time during the procedure
- Signs/symptoms that require review
- How and when to check threads
- Removal procedure
- Individual given opportunity to ask questions and to reflect on new information and return for procedure or alternative at another time if they wish
- Type of IUC device confirmed with patient and assistant
- Expiry date on IUC and analgesia checked
- Suitably trained assistant present
- Appropriate equipment available (e.g. resuscitation equipment, appropriate examination couch/lighting, range of speculum sizes, analgesia options)
Safe LNG-IUD Insertion
Training: Clinicians offering LNG-IUD insertion should hold the CoSRH Letter of Competence in Intrauterine Techniques. Immediate postpartum intrauterine contraception (PPIUC) technique is different to standard LNG-IUD insertion and should only be performed by those who have trained in this technique.
Assistants and Chaperones: A chaperone should be offered for all intimate examinations. The chaperone’s role is to support the patient. An appropriately trained assistant should be present during all cervical instrumentation procedures. The assistant can also fill the role of a chaperone if trained. The assistant should support the individual during the IUC procedure and monitor the patient for any signs of pain or distress.
Check the device has not expired: If an expired device is inadvertently inserted, inform the individual of the error and offer the option of retaining the device or having it removed and replaced. The expiry date relates to the microbiological sterility of the device. Risk of infection from loss of microbiological sterility could well be lower than the risk of infection if the device is replaced again when Intrauterine contraception. Manage the error according to local clinical governance policies.
Pain associated with LNG-IUD insertion
LNG-IUD insertions can cause mild-to-moderate pain or discomfort. Analgesia options should be discussed, offered and documented. NSAIDs such as ibuprofen can reduce pain after LNG-IUD insertion.
Emergency management for problems at IUD insertion
LNG-IUD insertion can trigger a vasovagal response. Drugs and equipment required for resuscitation must be available, accessible, clearly labelled, adequately maintained and their location known to all staff. Follow locally agreed risk management policies for the treatment of emergencies.
Documentation
Clinicians inserting or removing IUD should document the procedure and consultation in line with local policy and protocol and notify (where applicable and with consent) other relevant healthcare providers (e.g. primary care) of the type of device, date of insertion and recommended duration of use.