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Why is my period blood black but no period?

Published in Women's Health: Irregular Discharge 1 min read

Black period blood without a period can be caused by several factors. Often, the dark color simply indicates that the blood has been in the uterus or vagina for a while and has oxidized, causing it to become darker. It could also be a sign of:

  • Implantation bleeding: A common occurrence early in pregnancy, it can resemble a light period with dark blood.
  • Retained menses (hematocolpos): This happens when menstrual blood is blocked from leaving the uterus, cervix, or vagina, leading to dark, old blood.
  • Foreign object in the vagina: A tampon left in too long, or other objects like a forgotten contraceptive, can cause black discharge.
  • Other medical conditions: While less common, it might be a sign of a pelvic inflammatory disease or cervical cancer.

If you experience black discharge without a period, it's important to consult your doctor to determine the cause and get proper care.

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