Fetal breech position is somewhat related to sedentary behavior, which is not conducive to breech to cephalic position. Sitting for a long time causes the already formed breech position to continue downward due to gravity, and it is difficult to change the breech position to head position. For breech to cephalic position, you can choose chest-knee prone position. The chest and knee position enables the fetal buttocks to leave the pelvis, allowing the breech position to be converted to the head position. The immediate causes of fetal breech position include the following. 1. Excessive fetal range of motion in the uterine cavity: e.g., excessive amniotic fluid, or laxity of the abdominal wall in transplants; low-birth-weight babies, preterm babies, etc. 2. Fetus with restricted range of motion in the uterine cavity: e.g., low amniotic fluid, uterine malformation, resulting in the head of the fetus not being able to turn down naturally. 3. Pelvic stenosis, cephalopelvic disproportion, placenta praevia, etc., which cause fetal head title to be obstructed and lead to fetal breech position. 4. Fetal developmental abnormalities, such as anencephaly and hydrocephalus, will affect the pelvic articulation of the fetal head and lead to abnormal fetal position. When the fetus is in breech position, the mother should seek the help of obstetrician and gynecologist in time, and strive to turn the head position as soon as possible.