hMG较其它诱发排卵剂有较高的排卵率及妊娠率,一方面hMG在发挥FSH作用的同时,还具有LH作用,另一方面由于多发排卵可致多胎妊娠及易发生卵巢过度刺激综合征(OHSS)的副作用。hMG含有等量的FSH与LH,将hMG制剂除去特异的LH成分即获得纯FSH。LH刺激卵泡膜细胞产生雄激素,这种雄激素是颗粒细胞产生雌二醇的原料,因此hMG诱发排卵时可使多个卵泡发育及发生OHSS。在内源性LH本来就 hMG ovulation than other ovulation agents have a higher ovulation rate and pregnancy rate, on the one hand while hMG play FSH role, but also has the role of LH, on the other hand due to multiple ovulation can cause multiple pregnancy and prone to ovarian hyperstimulation syndrome OHSS) side effects. hMG contains the same amount of FSH and LH, the hMG preparation removes the specific LH component to obtain pure FSH. LH stimulates the production of androgen in the cells of theca cells, which is the raw material of granulosa cells that produce estradiol. Therefore, when ovulation is induced by hMG, multiple follicles can develop and produce OHSS. In endogenous LH already