陈凤林教授指出：根据不同的状况，宫颈埋箍手术在孕前孕后均可以完成，具体情况如下：Professor Chenfenglin pointed out: According to different conditions, cervix implantation can be completed after pregnancy. The specific conditions are as follows:

宫颈埋箍有三种术式：There are three ways to bury the cervix:

1.预防性埋箍，适应症是：既往有晚期流产史，目前处于未孕状态。1. Preventive buries, indications are: There has been a history of late miscarriage and is currently in a state of infertility.

2.抢救性埋箍，适应症是，既往有晚期流产史，现已经怀孕，宫口未开或部分松开 ，但胎胞没有凸入阴道。2. Respiratory placement, indications are that there has been a history of late miscarriage in the past, is now pregnant, the mouth of the palace is not open or partially released, but the fetal cells do not protrude into the vagina.

3.挽救性埋箍，适应症是，胎胞已经凸入阴道，或者已经破水，但是没有感染迹象。

3. Respiratory placement, indications are that the fetal cells have protruded into the vagina, or have broken water, but there is no sign of infection.