Why Is My Period Blood Brown?

Source:   Verywell health

Brown period blood has various causes but isn't usually a cause for concern. Period blood that looks brown is typically older, meaning it had more time to oxidize, resulting in a darker hue. However, sometimes, it can indicate a health concern.

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  • ACOG
  • AIUM
  • American Association of Gynecologic Laparoscopists
  • NYU langone Medical center
  • American Association for Accreditation of Ambulatory Surgery Facilities
  • UpToDate