The method of fetal preservation for short cervical canal needs to be decided according to the specific situation of the cervical canal, which generally includes daily care, oral medication and surgical treatment, etc.: 1. Daily care: after pregnancy, with different weeks of pregnancy, the length of the cervical canal will also change to some extent. If the cervical canal is more than 3cm or the endocervical opening is not funnel-shaped, the embryo can be closely observed if it is developing normally, and during pregnancy, you should rest in bed with your buttocks slightly padded, eat a reasonable diet, avoid heavy physical labor, and prohibit intercourse. E, can play the role of fetal preservation. You can also use magnesium sulfate medication to inhibit contractions and prevent miscarriage; 3, surgical treatment: if the length of the cervical canal is <2.5cm, combined with a special medical history, you can do cervical cerclage when there are indications for surgery, and it is recommended to take fetal preservation drugs under the guidance of the doctor to reduce the risk of preterm abortion. After full-term pregnancy, vaginal delivery can be attempted by observing whether the fetal position is normal and the pelvic condition is good.