Abnormal uterine bleeding may cause anaemia that requires blood transfusion.

Abnormal Uterine bleeding: The basics you must know.

We define abnormal uterine bleeding (AUB) previously termed dysfunctional uterine bleeding as abnormal bleeding that is unrelated to the typical periods (menstruation). It is not an uncommon problem, and it doesn’t have any single cause. 

Causes 

Abnormal uterine bleeding is commonly caused by hormonal irregularities, which usually culminates into cycles when the ovary doesn’t produce an ovum, termed as anovulatory cycles. 

Many women around the globe have one or two anovulatory cycles each year. 

Other causes include:- polyps, adenomyosis, leiomyomas, malignancy or atypical endometrial hyperplasia, coagulation disorders, primary endometrial disorders and other ovulatory disorders. Others may be iatrogenic. 

Symptoms 

Typically, bleeding continues from one period to the next, or it may be a heavy flow or just spotting.

Abnormal uterine bleeding may occur as bleeding between periods, that is, bleeding for a few days, stops for a few days, then bleeding again until the next period.

Diagnosis 

We base the diagnosis on medical history and physical examination. We can do blood tests and ultrasonography to rule out other causes. 

Treatment 

In most cases, abnormal uterine bleeding is self-limiting and needs no treatment. It will often stop after the next period. 

Intensely heavy bleeding can cause significant blood loss and does need treatment. Taking a progestin hormone such as medroxyprogesterone can abate this heavy bleeding. Side effects include; bloating, breast tenderness, lower backache, increased irritability, and mild depression. Since you take progestin for only 7 to 10 days, the side effects last for a short while. You can use birth control pills temporarily to control heavy bleeding. They may, however, cause mild nausea. If the worse comes to the worst, rarely, dilatation and curettage (D&C) are needed to control bleeding. During D&C, we scrape out the lining of the uterus. We hereafter carry out investigations – we also address all the other causes that need specific treatment modalities.

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 DOs and DON’Ts in managing abnormal uterine bleeding

  • Do take your medicines as directed.
  • Do call your health care provider if your period lasts longer than 7 or 8 days, you bleed between periods, or bleeding doesn’t slow or stop as expected.
  • Do call your health care provider if your period is much heavier than usual, such as soaking through maxi pads or super tampons every 2 hours or passing large clots.
  • Do call your health care provider if you bleed heavily and feel dizzy or weak. These feelings may be symptoms of severe anaemia.
  • Do call your health care provider if you may be pregnant.
  • Don’t stop your medicines early (even if the bleeding stops) unless your health care provider tells you to do so.

NOTE: We have updated this article and modified it to reflect the change of the terminology from dysfunctional uterine bleeding to Abnormal uterine bleeding (AUB), which we have universally adopted through FIGO. Download the PDF here. Credit goes to Ferri’s Netter patient advisor, from which we extracted most of this information. Buy yourself a copy here. Don’t forget to share this article.

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