1.Cesarean delivery in breech position is more difficult than in head position, especially when there is little amniotic fluid, because the breech is softer than the head, and the breech is close to the uterine wall, so it does not feel very good when cutting the uterine muscle layer, and the baby’s breech will be cut without attention. 2.It is better to take the lower uterine incision, the length of which is more than 10cm. If the lower uterine segment is not well formed, the two ends of the incision arc upward to prevent the incision from being too tight and tearing the uterine arteries and veins when assisting delivery, causing hemorrhage, etc. 3.After incising the lower uterine muscular layer, break the membrane and suck the amniotic fluid, the surgeon will investigate the uterus for deformities, clarify the fetal previa and fetal orientation, and turn to assist delivery according to the breech delivery machine, not to hook the limbs and pull out the fetal buttocks at will. 4, for single breech previa, first hold out part of the buttocks like a head rest, then tug the groin with both hands to deliver the fetal body, for fully breech previa, you can hold a foot first, pull out the baby’s legs in turn, and rotate into the pre-sacral position during traction, wrap the baby’s body with gauze pads, deliver the fetal body, deliver the shoulder and upper limbs in a wash face style, the operator will ride the fetal body on the right forearm, while the middle finger of the right hand reaches into the The fetus is placed on the right forearm, while the middle finger of the right hand is inserted into the fetus’ mouth, and the palate is placed on top, and the index finger and ring finger are attached to the maxillae on both sides; the fetus is pulled upward first, while the assistant applies appropriate pressure at the base of the uterus to keep the fetus bent down. When the occipital part of the fetus is against the upper edge of the uterine incision, the fetal body is gradually lifted upward and the fetus is delivered with the occipital part as the fulcrum, so that the fetus’s lower jaw, mouth, nose, eyes and forehead are delivered one after another. The time from the delivery of the umbilicus to the delivery of the fetal head should be strictly controlled within 2 minutes. 5. Any fetal delivery that violates the delivery mechanism can lead to neonatal asphyxia, intracranial hemorrhage, internal organ damage and long bone fracture. Bracing the buttocks is easy to cause genital injury and should be avoided. To hook the joint cannot hook the bone, otherwise it is prone to femoral stem fracture. Traction when the point of force in the ankle joint and fetal foot, rotate the fetal body when the point of force should be in the hip joint, can not hold the abdomen to prevent fractures, bone gou separation and visceral injury. 6.When the fetal femur is out of the pelvic inlet plane, the femur must fall on the transverse diameter or oblique diameter of the pelvic inlet, and never fall on the anterior and posterior diameter of the pelvic inlet, otherwise it is easy to cause fracture of the femoral stem. 7, such as foot or knee previa and has been deep into the pelvis, delivery of the lower limbs first one hand into the pelvis to push the child leg slapping fossa, so that the hip and knee joints in the pelvis oblique diameter or transverse diameter; if at the same time the fetal hip has been completely into the pelvis, you need to make the knee joint to the fetal abdomen flexion, close to the fetal abdomen gently turn the femur, and along the natural direction of joint flexion to pull out the fetal lower limbs 8, breech newborn removed, do not rush to break the umbilical cord, first suction clean This may help to resuscitate the newborn and improve the score. Routine physical examination of the newborn after resuscitation, fractures are found and the cause of fracture is inferred from the fracture line. Improper hooking causes transverse fractures and improper rotation causes oblique fractures. 9.Foot first dew cesarean delivery is prone to femoral stem fracture, so the skill of foot first dew extraction of limb and fetal hip should be mastered to prevent fracture. 10.Treat the problem in time.