To prevent pregnancy, Mirena:
Thickens mucus in the cervix to stop sperm from reaching or fertilizing an egg
Thins the lining of the uterus and partially suppresses ovulation.
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Use this section to explain a set of product features, to link to a series of pages, or to answer common questions.

Use this section to explain a set of product features, to link to a series of pages, or to answer common questions.