What can period blood reveal about a person’s health?

The FDA recently approved the first diagnostic test based on menstrual blood

A menstrual pad on a blue background

Earlier this year, the U.S. Food and Drug Administration approved the first health diagnostic based on period blood, an at-home test for diabetes. Researchers are looking into what else menstrual blood can reveal about a person’s health.

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When you think of getting tested for a disease, you might think first of nasal swabs, urine tests, blood draws.