What causes cervical laxity?

Causes of cervical relaxation: First, a history of multiple unwanted pregnancies, multiple previous miscarriages of the second trimester or extreme preterm labor may present cervical laxity; second, a history of cervical surgery, seen in multiple abortions or repeated cervical dilation during abortion, and a history of previous fertility that resulted in cervical laceration; and a history of cervical conization and extensive cervical resection may present cervical laxity. Third, drug factors, such as prolonged use of diethylstilbestrol, may cause cervical dysplasia and cervical laxity. These are some of the main causes, and relevant tests are needed to determine the specific cause.