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What Is the Cause of Spotting?

Spotting is bleeding from the uterus between menstrual periods. It may involve small amounts of blood or heavy flow. Abnormal bleeding can signal gynecological complications or other medical problems and you should consult a gynecologist to determine the cause.

  1. Normal Menstrual Flow

    • Normal menstrual flow usually takes place every 28 days, and menstrual flow usually lasts about four to seven days. According to the University of Maryland Medical Center, spotting between periods or after menopause may be due to cancer or pre-cancer.

    Cervical Cancer

    • One of the main causes of spotting is cervical cancer, one of the most common cancer affecting women's reproductive organs---according to Mayo clinic. Symptoms include vaginal bleeding after intercourse, between periods or after menopause.

    Dysfunctional Uterine Bleeding (DUB)

    • Dysfunctional uterine bleeding is another common cause of spotting. According to MedlinePlus, DUB is often triggered by changes in hormone levels when the ovaries fail to ovulate on time, causing changes to menstrual cycles. Symptoms include light spotting, very heavy bleeding or menstruation lasting longer than seven days.

    Ectopic Pregnancy

    • According to Mayo clinic, ectopic pregnancy happens when the fertilized egg attaches itself to the fallopian tubes instead of the uterus. The baby cannot survive and one of the first warning sign is light vaginal bleeding.

    Endometrial Cancer

    • When cancer attacks the inner lining of the uterus, called endometrium; endometrial cancer results. It is more common among women aged 45 and older who have gone through menopause. According to the National Cancer Institute, symptoms include unusual vaginal bleeding, painful or difficult urination, painful intercourse and pain in the pelvic area.

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