The causes of cervical laceration are very complex and include the following: 1. Injuries during labor or when the cervix is not sufficiently dilated during delivery are the most common clinical causes of cervical laceration. This is the most common clinical cause of cervical laceration. 2. cervical laceration can also be caused during abortion, especially if the operation is not done properly. 3. congenital abnormalities in the development of the cervix can cause cervical laceration. cervical laceration is very harmful, the main thing is that it can easily cause cervical infection, and after the infection, the patient will have increased leucorrhea or purulent leucorrhea and other symptoms. Symptoms. If you have a cervical laceration for a long time, you may experience depression, back pain and weakness. If you have cervical laceration, you must go to a regular hospital for treatment in time.