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Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
breakthrough bleedingGynecology A term applied to various gynecologic “bleeds,” usually refers to mid-cycle bleeding in OC users, and is attributed to insufficient estrogens; the term is not applied to abnormal bleeding in OC users
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
breakthrough bleedingMenstrual bleeding occurring in the course of hormone treatment to suppress the menstrual cycle.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005