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Etymology: Gk, ante, before; L, parturire, to have labor pains; Gk, haima, blood, rhegnynai, to burst forth
bleeding from the uterus during a pregnancy in which the placenta appears to be normally situated, particularly after the 28th week.
Excessive blood loss during the prenatal period, most commonly associated with spontaneous or induced abortion, ruptured ectopic pregnancy, placenta previa, or abruptio placentae.
See also: hemorrhage