Objective : To examine the value of combining cervical length and Bishop score in a prolonged pregnancy in the prediction of the probability of firstly, spontaneous onset of labor within the subsequent 7days and secondly, the need for Cesarean section. Methods: This was a prospective study conducted in kasr al ainy from March 2009 to Novumber 2011 including 200 cases of singleton pregnancies attending study at 41wk to 42 weeks of gestation. The policy was to delay induction of labor by 7 days unless there was evidence of a specific medical or obstetric indication. The measurement of cervical length, Bishop score was not given to the obstetrician. Regression analysis was used to determine which of the following factors had a significant contribution in predicting spontaneous onset of labor, vaginal delivery and CS in spontaneous onset of labor: maternal age, body mass index (BMI), parity, Bishop score and cervical length. Regression analysis was also used to predict the vaginal delivery and CS in the induction of labor group that include: maternal age, body mass index (BMI), parity, Bishop score and cervical length. Results: The women who are included in the study were 200 cases. Cases who develop spontaneous onset of labor and delivery within 7 days about 165 women (82.4%) and induction of labor at 42wks about 35 women (17.6%). The number of vaginally delivered cases who developed spontaneous onset of labor were 140 cases while those who delivered by CS were 25 cases due to failure of progress or fetal distress. The cases who were subjected for induction at 42wks, 22 cases were delivered vaginally while 13 cases were delivered by CS. There is statistical significance in the vaginally delivered women in the spontaneous onset of labor pains in relation to the gestational age, BMI, parity, cervical length and Bishop score . The induction group also showing the statistical significance in the rate of cesarean section according to the following items: parity, BMI, cervical length and Bishop score