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Your problem is related to hormonal
imbalance causing dysfunctional uterine bleeding
your Gynecologist can treat with hormones most of the times but sometimes a D&C may be required to control bleeding.
This is good that you do not have any polyp or fibroids.
Your hormonal levels like FSH And LH may also be tested to see if they show any signs of early menopause
Please do not delay the help from Gynecologist.