By oocyte cryopreservation, we can preserve fertile ability and solve a lot of questions on ethics?laws?religions which can not be solved by embryo cryopreservation.

• 方法包括卵子冷冻的选取,卵子的预处理,卵子的冷冻、复苏、复温,复苏后的培养与受精,以及影响卵子冻存率和受精率的因素。