A member asked:

What are the causes of a long but very light menstruation period?

A doctor has provided 1 answer

Low progesterone: For menstruation to occur, the estrogen levels have to drop off, and the Progesterone levels surge. This allows the endothelial lining to slough off. When the Progesterone surge is inadequate, the menses drags on for days and days.

Answered 6/30/2014

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