Ovariohysterectomy was performed on 51 native breed healthy bitches (6 months-5 years age, 8-20 kg. weight) after first heat, during pregna ncy or after parturition. The operations were done under different types of anaesthesia, suture materials and different techniques to determi ne the best surgical approach for such operation. The various complica tions of each technique were recorded and discussed. It was concluded that the best surgical technique was that performed at the midline (linea-alba) under the effect of general anaesthesia using thiopental sodium (Nesdonal) proceeded by combelen. The use of catgut for ligature of the uterine stump and the ovarian blood vessels together with envelo ping the uterine stump with the great omentum gave the best results.