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Breech presentation is the most frequent abnormal presentation, and the increased fetal mortality and maternal complication associated with breech presentation remains as a major obstetrical problems. The results were as follows : 1) The incidende of breech presentation was 4.26%. 2) Type of breech presentation were Frank breech (35.5%), incomplete breech(15.5%), and complete breech(5.4%). 3) The major predisposing factor of breech presentation were prematurity 104 cases(17.6%), cephalopelvic disproportion 58 cases (9.9%), and multiple pregnancy 53 cases (9.0%). 4) There were 30.7% of early spontaneous rupture of membrane among the antepartum complication which was 3 times higher than the incidence in vertex presentation. 5) The average length of labor in primipara was 11 hrs. 44 min, and 7 hrs. 37 min. in multipara. The duration of labor was shorter than vertex presentation, especially in decelerating phase. 6) Type of delivery was mainly partial breech extraction(60.5%) and total breech extraction was applied to second baby of twin. Pitocin stimulation was tried in 159 cases without maternal complications and perinatal losses. 7) Cesarean section rate was 25% and main indication were cephalopelvic disproportion(55.3%) previous cesarean section (15.3%), and prolapse of cord (12.7%). 8) In applying the Zatuchni-Andros prognostic scoring, 0-3 score shown 73.4% in the group of cesarean section and 42.2% in group of vaginal delivery. 9) Uncorrected perinatal mortality was 13.4%, corrected fetal loss was 4.74%. The leading cause of death was prematurity.
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