IM Neostigmine for Accelerating Bladder Emptying After CS by Spinal Anesthesia

Inclusion Criteria: * Pregnant women undergoing elective cesarean deliver under spinal anesthesia. Exclusion Criteria: * The age of the patient is more than 35 years of less than 20 years. * The body mass index of the patient is more than 35 kg/m2 or her height is more than 180 cm or less than 150 cm. * Multiple gestation. * The patient is in active labor. * Vaginal bleeding, placenta previa or abruption of the placenta. * Presence of fetal distress. * Urinary symptoms. * Medical disorders co-existing with or complicating pregnancy. * Contraindications for or history of adverse reaction of Neostigmine. * Contraindication for spinal anesthesia. * Refusal of the patient to receive spinal anesthesia. * Intraoperative significant hemorrhage. * Duration of the operation is more than one hour. * Occurrence of postoperative complications as eclampsia.