What is the role of prostaglandins in the pathogenesis of primary dysmenorrhea?

Updated: Sep 23, 2019
  • Author: Karim Anton Calis, PharmD, MPH, FASHP, FCCP; Chief Editor: Michel E Rivlin, MD  more...
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Elevated prostaglandin levels were found in the endometrial fluid of women with dysmenorrhea and correlated well with the degree of pain. [17] A 3-fold increase in endometrial prostaglandins occurs from the follicular phase to the luteal phase, with a further increase occurring during menstruation. [18] The increase in prostaglandins in the endometrium after the fall in progesterone in the late luteal phase results in increased myometrial tone and excessive uterine contraction. [8]

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