Induction of labor is a widely used intervention on the modern labor and delivery unit. While it follows electronic fetal monitoring and ultrasound in frequency, the use of this procedure has increased from 9.5% in 1990 to 20.6 in 2002-2003The Bishop score, since its description in 1964, remains the gold standard for assessing favorability for induction of labor. However, the preinduction ‘favorability’ of the cervix as assessed by the Bishop score is very subjective and several studies have demonstrated a poor predictive value for the outcome of induction especially in women with a low Bishop scoreAs The supra-vaginal portion of the cervix makes up about 50% of the cervical length and varies from one woman to another. This portion of the cervix is difficult to estimate digitally and it makes assessment highly subjective, so Transvaginal ultrasonographic measurement of cervical length may be a more objective method for assessing cervical status.