A member asked:

This aug/sept my menstruation has been dark/black, but has always been red all my life does it have anything to do with my synthroid/ hypothyroid/ tsh?

A doctor has provided 1 answer

Menstrual color: It sounds like you are passing old blood. Blood gets progressively darker as it ages until it reaches an almost blackish color. If your thyroid level is off, you may not be ovulating and only passing old blood.

Answered 9/16/2014

3.7k views

Thank

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