A breech birth is the birth of a baby from a breech presentation, in which the baby exits the pelvis with the buttocks or feet first as opposed to the normal head-first presentation.In breech presentation, fetal heart sounds are heard just above the umbilicus.The bottom-down position presents some hazards to the baby during the process of birth, and the mode of delivery (vaginal versus Caesarean) is controversial in the fields of obstetrics and midwifery.n breech presentation, fetal heart sounds are heard just above the umbilicus. The bottom-down position presents some hazards to the baby during the process of birth, and the mode of delivery (vaginal versus Caesarean) is controversial in the fields of obstetrics and midwifery.