Incompetent cervix is often over diagnosed. Sometimes incompetent cervix is diagnosed based on ultrasound findings. On ultrasound, the cervix is sometimes seen to be very short. The internal opening may be dilated. The cervix may shorten further when pressure is put on the uterus.
Some women complain of pelvic heaviness, or lots of discharge.
Often when they see their provider they are found to have a very dilated cervix with the bag of waters coming out. Many times a cause cannot be found. Impact on Pregnancy Incompetent cervix may cause miscarriage at 18-24 weeks. Treatment is with cervical cerclage or prolonged strict bedrest. A stitch is placed high up around the cervix to keep it closed.