Most babies move into a normal, head-down position a by three weeks before birth.
Frank breech, in which the buttocks present and the legs extend straight up in front of the baby s body with the feet near the head. The causes of breech presentation are unknown. The breech infant is at higher risk some birth defects. In the last trimester of pregnancy, the practitioner will feel the baby through the mother s abdomen to determine the position. The provider places both hands on the abdomen to identify the head, back and buttocks.