There is no correlation between cervical incompetence and the number of weeks of pregnancy. Normal pregnant women do not experience cervical incompetence during pregnancy. The ability of the cervix to cope is different for each individual, and it is only during labor that the cervical tissues gradually change and become less able to cope, which facilitates the delivery of the fetus. In normal pregnant women, the cervix does not become unstressed during the entire pregnancy. However, women with a history of miscarriage or dilatation may experience cervical incompetence. It is generally recommended that pregnant women have a checkup at 11-14 weeks of pregnancy, and if cervical incompetence is found, cervical cerclage is required. Cervical cerclage is indicated for pregnant women with cervical insufficiency to repair and establish normal cervical endocervical morphology and function to maintain pregnancy until full term, and the procedure is usually performed at 14-18 weeks of pregnancy. It is recommended to pay more attention during pregnancy, and if the examination reveals that the cervix is not stressful, it should be dealt with promptly.