Dysfunctional uterine bleeding classification

Dysfunctional uterine bleeding Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Vishnu Vardhan Serla M.B.B.S. [2]

Classification

It can be classified as ovulatory or anovulatory, depending on whether ovulation is occurring or not.

• Uterine bleeding is deemed abnormal when there is an irregular amount or an irregular pattern of bleeding.
• Menometrorrhagia: Excessive and irregular bleeding between cycles and during menstruation
• Metrorrhagia: Irregular and more frequent bleeding
• Menorrhagia: Excessive, but regular bleeding

Ovulatory

Ovulatory DUB happens with the involvement of ovulation, and may represent a possible endocrine dysfunction, resulting in menorrhagia or metrorrhagia. Mid-cycle bleeding may indicate a transient estrogen decline, while late-cycle bleeding may indicate progesterone deficiency.

Anovulatory

Anovulatory cycle DUB happens without the involvement of ovulation. The etiology can be psychological stress, weight (obesity, anorexia, or a rapid change), exercise, endocrinopathy, neoplasm, drugs, or it may be otherwise idiopathic.