What is the role of oral contraceptives and steroid replacement therapy in the etiology of abnormal uterine bleeding (AUB)?

Updated: Dec 07, 2018
  • Author: Millie A Behera, MD; Chief Editor: Richard Scott Lucidi, MD, FACOG  more...
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Treatment with oral contraceptives, progestin-only preparations, or postmenopausal steroid replacement therapy might be associated with iatrogenically induced uterine bleeding.

Progesterone breakthrough bleeding occurs in the presence of an unfavorably high ratio of progestin to estrogen.

Intermittent bleeding of variable duration can occur with progestin-only oral contraceptives, depo-medroxyprogesterone, and depo-levonorgestrel.

rogesterone withdrawal bleeding can occur if the endometrium initially has been primed with endogenous or exogenous estrogen, exposed to progestin, and then withdrawn from progestin. Such a pattern is seen in cyclic hormonal replacement therapy.

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