冷凍胚胎適應症:

卵巢過度刺激OHSS
P4>1.5
卵胚太少，品質不佳
內膜太薄, 積水
PGD
使用GnRHa (leuplin) 破卵


冷凍胚胎風險:
胚胎受損(10%左右)
胚胎品質越差，長的速度越慢，受損率越高


http://link.springer.com/article/10.1007%2Fs10815-016-0799-9

Table 2

Indications for frozen embryo transfers

FET indications
OHSS
Elevated progesterone
Genetic Screening
Low responders
Inadequate uterine cavity
Hypertension
Zika virus (areas affected)