The invention discloses an application of CDH3 in diagnosis of recurrent
abortion. The invention discovers that the expression quantity of the CDH3 is closely related to the recurrent
abortion for the first time, and the reduction of the expression quantity can promote the occurrence of the recurrent
abortion, which indicates the potential possibility of the CDH3 as an RSA early diagnosis marker. The invention is helpful for deeply knowing
pathogenesis of RSA, provides a potential marker and a therapeutic target for
clinical diagnosis, prevention and treatment of recurrent abortion, and has a good application prospect.