Mirena Dangers

Mirena® is an intrauterine system (IUS) that works to prevent pregnancy primarily by stopping ovulation, although it also causes certain changes in the uterus and cervix that make contraception more unlikely. In general, this product is not dangerous; Mirena does carry certain risks, however, and is not appropriate for all women.
For example, women who have a history of cervical or uterine cancer, abnormal vaginal bleeding, a blood-clotting disorder, or certain other medical conditions may not be able to use Mirena. In addition, in rare cases, some women experience severe pain within a few hours after the device is inserted. If this happens, seek immediate medical attention, as this is a sign of a potentially dangerous infection.
(Click Mirena Warnings and Precautions and Mirena Side Effects to learn more about potential dangers associated with this drug.)
Last reviewed by: Kristi Monson, PharmD
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