骨质疏松好发于女性,与女性激素降低密切相关[1 ] ,妊娠期女性体内性激素水平虽然不低,但是对钙的需求增加。因此,妊娠对骨代谢的影响也是人们关注的焦点。产后出血是产科的常见疾病,血中钙离子的大量丢失可能影响骨代谢,然而产后出血对骨代谢的影响尚未见报道。本文对产后出血 Osteoporosis occurs predominantly in women, and is closely related to female hormone lowering [1]. Sex hormone levels in pregnant women are not low, but the demand for calcium is increased. Therefore, the impact of pregnancy on bone metabolism is also the focus of attention. Postpartum hemorrhage is a common obstetric disease, a large number of blood calcium loss may affect bone metabolism, however, the impact of postpartum hemorrhage on bone metabolism has not been reported. This article on postpartum hemorrhage