Dysfunctional uterine bleeding

Dysfunctional uterine bleeding

DiseaseDisorder infobox
Name = Dysfunctional uterine bleeding
ICD10 =
ICD9 = ICD9|626.8

Dysfunctional Uterine Bleeding (DUB) is the most common cause of functional abnormal uterine bleeding, which is abnormal genital tract bleeding based in the uterus and found in the absence of demonstrable organic pathology.Diagnosis must be made by exclusion, since organic pathology must first be ruled out.It can be classified as "ovulatory" or "anovulatory", depending on whether ovulation is occurring or not.

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.

Assessment of anovulatory DUB should always start with a good medical history and physical examination.Laboratory assessment of hemoglobin, luteinizing hormone (LH), follicle stimulating hormone (FSH), prolactin, T4, thyroid stimulating hormone (TSH), pregnancy (by βhCG), and androgen profile should also happen.More extensive testing might include an ultrasound and endometrial sampling.

Management

Management of dysfunctional uterine bleeding predominantly consists of reassurance, though mid-cycle estrogen and late-cycle progestin can be used for mid- and late-cycle bleeding respectively.Also, non-specific hormonal therapy such as combined estrogen and progestin can be given.

The goal of therapy should be to arrest bleeding, replace lost iron to avoid anemia, and prevent future bleeding.

Resources

* [http://www.merck.com/mrkshared/mmanual/home.jsp Merck Manual] : [http://www.merck.com/mrkshared/mmanual/section18/chapter235/235e.jsp Abnormal Uterine Bleeding]


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