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About the LNG IUS

How does the LNG IUS work?

How effective is the LNG IUS?

Client Information



The Levonorgestrel Intrauterine System (LNG IUS) must be inserted by a trained health practitioner, using aseptic techniques. A gynecological examination is advised before LNG IUS insertion, to identify possible infections (such as sexually transmitted infections) and to also determine the position and size of the uterus.

There are no age or parity restrictions on its use, and women can use an LNG IUS throughout their reproductive life, as long as it is replaced every 5 years. Removal of LNG IUS can be done at any time by a trained health practitioner. Upon device removal, the woman’s fertility returns shortly.

Possible complications from LNG IUS use are rare, and are similar to those associated with other intra-uterine devices and other hormonal methods of contraception. Complications may include perforation at the time of insertion, inappropriate device location, expulsion, and pelvic inflammatory disease. Other side effects associated with the use of the LNG IUS may include a change in bleeding patterns (in frequency, duration and amount), the absence of bleeding, and/or benign ovarian cysts. Other less common side effects may include the following: acne, headaches, breast tenderness or pain, nausea, weight gain, dizziness and/or mood changes.

Further detailed information about the LNG IUS for the client and the health care provider is available in the Project Resource Page.


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