1 doctor weighed in:

Is it effective to use menstrual blood for a home blood type test?

1 doctor weighed in

In brief: Not really

While "blood is blood" for blood typing, the menstrual blood has clotted and is degenerated, which may release the blood type antigens or result in an inaccurate test.

In brief: Not really

While "blood is blood" for blood typing, the menstrual blood has clotted and is degenerated, which may release the blood type antigens or result in an inaccurate test.
Dr. Lester Thompson
Dr. Lester Thompson
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