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Dr. Sarbani Ghosh, Best Gynaecologist in Kolkata, treating irregular bleeding

What is Abnormal Uterine Bleeding (AUB)?

Abnormal uterine bleeding refers to any bleeding from the uterus that is irregular, excessive, prolonged, or unusual in timing. It affects many women and can occur at any age..

Types of Abnormal Bleeding

  • Menorrhagia : Heavy or prolonged periods.

  • Metrorrhagia : Bleeding between periods.

  • Polymenorrhea : Periods occur too frequently (<21 days apart).

  • Oligomenorrhea :Infrequent periods (>35 days apart).

  • Amenorrhea :Absence of periods (for ≥3 months).

  • Postmenopausal bleeding :Bleeding after menopause.
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    Common Symptoms

  • Bleeding lasting more than 7 days.

  • Soaking through a pad/tampon every 1–2 hours.

  • Clots larger than a quarter.

  • Bleeding between periods.

  • Fatigue, dizziness, or anemia-related symptoms.

  • Causes of Irregular and Heavy Bleeding (PALM-COEIN Classification)

    01 P – Polyp

    Benign growths inside the uterus or cervix

    02 A – Adenomyosis

    Endometrial tissue growing into the uterine muscle

    03 L – Leiomyoma (Fibroids)

    Noncancerous tumors in the uterus

    04 M – Malignancy and hyperplasia

    Endometrial cancer or pre-cancerous thickening

    05 C – Coagulopathy

    Bleeding disorders (e.g., von Willebrand disease)

    06 O – Ovulatory dysfunction

    Irregular ovulation, common in PCOS, thyroid disorders

    07 E – Endometrial dysfunction

    Normal structure but abnormal lining function

    08 I – Iatrogenic

    Caused by medications (e.g., blood thinners, contraceptives)

    09 N – Not yet classified

    Rare or unexplained cases

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