Implantation Bleeding Colors: From Light Pink to Dark Red & What They Mean

Implantation bleeding is typically light and short-lived (1–3 days). Color can range from:

• Light pink
• Brown
• Dark red

Color variation depends on the amount of bleeding and time since implantation. Fresh blood appears red; older blood oxidizes to brown. It's possible for bleeding to start brown and turn red the same day as flow changes.

Caused by the fertilized egg implanting into the uterine lining. Not all pregnant women experience it; absence doesn't rule out pregnancy.