What are the possible side effects or complications of Mirena®?
Side effects of the hormone in Mirena® include: • changes in periods as above • only a very small amount of progestogen passes into the bloodstream. This means that other side effects are rare, mild and often improve with time. They include acne, breast soreness, headache and mood changes. Mirena® should have no effect on weight. Side effects and complications of the insertion procedure can include: following insertion, some women notice abdominal cramping pain and bleeding for up to a week or two • perforation This is a rare but potentially serious complication where the Mirena® device passes through the wall of the uterus into the pelvic area, usually at the time of insertion. This can occur in about one per 1000 insertions. This requires surgery under a general anaesthetic to remove the Mirena®. • expulsion Sometimes the Mirena® device may be partially or completely pushed out by the uterus. This is more common in younnger women and women who have never had children. It occurs in ab
