Thanks for the query,
MIRENA is a progesterone IUD and its role is to prevent ovulation and change the endometrial lining to make the environment unsuitable for conception . Also , with continued progesterone presence it may cause some irregular bleeding which can be intermenstrually for some 2-3 months and it is normal for a MIRENA use and a known side effect. You may opt for antifibrinolytics like tab tranexamic acid 500mg thrice a day for 5 days and your bleeding should stop. Then it is likely that in next few weeks onwards you may start experiencing amenorrhoea ideally which is the desired effect of mirena.
I hope i have answered your query in detail,
wishing you good health,
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