Methods: Measure the concentration of E 2 in serum and follicular score on the day of hCG injection, use follicular score system to find the correlation of follicular score and E 2 and to find the value of them on the forecast the occurrence of OHSS.

• 方法 :对 4 0例实施IVF ET的患者分别测定注射hCG日血清E2 和双侧卵泡的大小 ,使用卵泡评分系统 ,探讨卵泡分值与血清E2 水平的相关性以及 2种指标在预测早发型OHSS中的价值。