The test is performed with an ultrasound probe through the vagina and is completely painless and harmless to the pregnant woman.
At the same time, the position of the placenta can be accurately determined and a premature placenta can be ruled out.
The most ideal time to measure the length of the cervix is from 24 weeks gestation onwards .
The length of the cervix predicts our risk of premature birth.
The most ideal length is between 30 and 70 mm.
A shorter cervix is defined as a cervix that is 20mm in length in a singleton pregnancy.