Tailored Pfannenstiel Incision for Caesarean Delivery According to the Fetal Head Occipitofrontal Diameter

Inclusion Criteria: * The women older than 18 years * term nulliparous pregnancies (\>37w) * primary elective/planned Cesarean delivery * fetuses with vertex presentations * underwent spinal anesthesia Exclusion Criteria: * all emergency cesarean sections ( fetal distress, third trimester bleeding including abruption of placenta and placenta previa bleeding, arrest of labor in the second phase) * cesarean delivery for severe preeclampsia * cesarean delivery for non-vertex fetal presentations (breech and shoulder presentation) * cesarean delivery for deflexion fetal head presentations (face and brow) * cesarean delivery during active phase of the first stage of labor * cesarean delivery for placenta previa or low-lying placenta, * cesarean delivery for multiple pregnancies * all cesarean deliveries with uncontrolled gestational or non-gestational diabetes mellitus