Inclusion Criteria:  term pregnancy weeks between 37-42, singleton, vertex presentations prolonged second stage of labor Fetal head is minimum at the level of ischial spin maternal incompatibility during/after second stage of labor complete cervical dilatation  Exclusion Criteria:  Fetal distress Uncomplete cervical dilatation twin pregnancies or polycyesia Pregnancy weeks lower than 37weeks other than vertex presentations Fetal Anomalies