Health Tip: Bleeding Between Periods

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(HealthDay News) -- Menstrual bleeding typically occurs about every 28 days, and lasts for about four days at a time.

Vaginal bleeding that occurs outside of the menstrual cycle has many potential causes, and should be evaluated by a doctor.

Here are possible reasons for vaginal bleeding between menstrual cycles, courtesy of the U.S. National Library of Medicine:

  • Cancer of the cervix, uterus or, rarely, fallopian tubes.
  • A side effect of certain procedures, including cervical or endometrial biopsy.
  • Stress or changing hormone levels.
  • Uterine fibroids or polyps, or vaginal dryness.
  • Pregnancy complications, including ectopic pregnancy or miscarriage.
  • Disease or injury to the vaginal opening.
  • Using an IUD, or stopping or starting the birth control pill.
  • An underactive thyroid.
  • Taking a blood thinner.

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