AbstractIntroduction: While offering a suggesting that the site of placental location could influence the presentation, STEVENSON (1949) stated that the position of the placenta in the near term of term human uterus could indent and alter the ovoid shape of the amniotic sac and thus the polarity of the sac. Aims and Objectives: To Study the Location of Placenta and its association with Breech Delivery Methodology: This prospective study of placental location site in breech and shoulder presentations as compared to the vertex presentations was conducted in the Department of Obstetrics and Gynaecology of Kasturba Medical College, at Govt. Lady Goschen Hospital Mangalore. During the 20 month study period there were 6614 deliveries. Of these 147 number were full term breech deliveries and 19 number were shoulder presentation deliveries. Ultrasound, By inspection and palpation at the time of caesarean section. Result: LGH study march 1990 Majority of the Breech deliveries were having Cornuo-fundal location of placenta i.e. 65% next common location of placenta was Anterior i.e. 11% in Vertex Presentation the most common location of placenta was Anterior -47% in Shoulder Presentation the most common location of placenta was Cornuo- fundal- 44.44%. Stefan fianu Sweden 1978 the Location of Placenta was Cornuo-fundal 72.6% and for the Vertex was Fundal central i.e. 55.4% At Madras 1987most common location of Placenta for Breech wasCornuo fundal- 35.8% and for the Shoulder was Placenta previa 55.6%.atMaulanaazad medical college, at Delhi 1987The most common position for the Breech delivery was Cornuo- fundal -63.5% and for Shoulder was Anterior-43.6%. Conclusion: This study is a reaffirmation the work by the others and serves to emphasize the fact that cornuofundal implantation of the placenta is an established etiology for the breech shoulder presentation. Ultrasound has come to stay as an excellent tool for non-invasive diagnosis of the placental location and has replaced the older methods of placentaography.

Keywords: Location of Placenta, Breech Delivery, Shoulder Delivery.