4 doctors weighed in:

Does menstrual periods cause melena?

4 doctors weighed in
Dr. Heidi Fowler
Psychiatry
3 doctors agree

In brief: Menstrual blood

Can be black (deoxygenated) when old.
But melena is when black, tarry, malodorous stool comes from the rectum. If you have rectal bleeding please be assessed.

In brief: Menstrual blood

Can be black (deoxygenated) when old.
But melena is when black, tarry, malodorous stool comes from the rectum. If you have rectal bleeding please be assessed.
Dr. Heidi Fowler
Dr. Heidi Fowler
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