The conditions for normal delivery are as follows: 1. normal pelvis: if there is pelvic stenosis, it is not possible to deliver by cesarean section; 2. normal fetal weight: the ideal fetal weight is generally 3.0kg, if the fetus is too large, greater than 4.0kg, that is, a huge baby, this situation is also not suitable for normal delivery; 3. fetal position: the normal fetal position is cephalic, if there is an abnormal fetal position, such as breech position, transverse position, it is not possible to deliver by cesarean section; 4. other factors: such as fetal hypoxia, and some serious obstetric complications, such as complete placenta praevia, etc. If there is abnormal fetal position, such as breech position or transverse position, it is not possible to deliver by normal delivery; 4.