Patients were randomly divided into 4 groups: group G (general anesthesia for Caesarean section, n=21), group S (spinal anesthesia for Caesarean section, n=21), group E (epidural anesthesia for Caesarean section, n=21), group V (normal vaginal birth without anesthesia, n=21). Blood sample of 3 mililiters was taken from all patients 2,5 hours before procedure and oxytocin and prolactin levels in this blood samples were determined. No patient received premedication. Group G (general anesthesia for Caesarean section) received preoxygenation with 100% oxygen for 3-5 minutes before intubation. In order to let fetus minimally affected by the anesthetic agents, induction was performed after the disinfection and covering up of surgery area. Induction was performed with propofol (2 mg/ kg) and rocuronium (0,6 mg/kg). After onset of neuromuscular block, patients were intubated with compression maneuver of cricoid cartilage. Controlled ventilation was provided with anesthesia machine Datex Ohmeda S/5 Avance with tidal volume of 8-10 ml/kg, respiration frequency of 10-12 min. Anesthesia was maintained with oxygen (50%) , air (50%), sevoflurane of 1 MAC. When necessary rocuronium 0,15 mg/kg was administered. After delivery of the newborn, fentanyl 1-1,5 mcg/ kg was administered.