Abnormalities of the powers uterine inertia 2. Clinical findings Failure to progress Lack of progressive cervical dilatation Prolonged latent phase Prolonged active phase Protracted active phase Prolonged second phase e Lack of fetal decent Prolonged descent Protracted descent Prolonged labor RENJI HOSPITAL7 RENJI HOSPITAL Abnormalities of the powers -----uterine inertia 2.Clinical findings Failure to progress v Lack of progressive cervical dilatation Prolonged latent phase Prolonged active phase Protracted active phase Prolonged second phase v Lack of fetal decent Prolonged descent Protracted descent Prolonged labor