The fetal position may change after it is correct, so dynamic monitoring or examination is needed at any time to keep abreast of the fetal position. 30 weeks before the fetal position is correct, the fetal position can be changed to normal on its own, and after 30 weeks, the fetal position can be changed to normal head position through chest and knee position or moxibustion at the Zhiyin point, or through manipulation. In some cases, because the fetus is small and has more room to move, the fetus can move freely inside the uterine cavity and may turn into breech or transverse position after the fetal position is correct. In many cases, the abdominal wall is relatively loose and the fetus has more room to move. As the fetus moves in the uterus, especially when the fetus is more active, the head position may also change to breech position.