breakthrough bleeding

noun
break·​through bleeding | \ ˌbrāk-ˌthrü- How to pronounce breakthrough bleeding (audio) \

Medical Definition of breakthrough bleeding

: an abnormal flow of blood from the uterus that occurs between menstrual periods especially due to irregular sloughing of the endometrium in women on contraceptive hormones

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Cite this Entry

“Breakthrough bleeding.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/breakthrough%20bleeding. Accessed 6 Aug. 2020.

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