Can A Fetus That Has Entered The Pelvis Change Position?

Illustration of Can A Fetus That Has Entered The Pelvis Change Position?
Illustration: Can A Fetus That Has Entered The Pelvis Change Position? irishtimes.com

This is my first pregnancy, now it’s 35w and the midwife says that the head of the fetus has entered the pelvis but hasn’t entered it once, can it change to go back to the pelvis or not? Thanks.

1 Answer:

Hello Yossa, thanks for asking.


The fetus in the uterus can move and change position. Fetal movement is more flexible in the first and second trimesters, because the size of the fetus is not too large. Entering the third trimester, the size of the fetus will develop rapidly, so that the fetal space will be increasingly limited. This causes the late third trimester, the fetus is difficult to change position.


The more mature the gestational age, the fetus will increasingly move into the pelvic door. The pelvic door consists of the upper and lower doors. The head of the fetus that is still above or in the face of the pelvic door, sometimes can still change position. However, generally the fetus will continue to fall further down the pelvic door, not back up again. When the fetal head is firmly in the pelvic cavity, the position does not change.


Perform routine antenatal checks so that the midwife or doctor can immediately detect if a problem occurs. Hopefully this answer is helpful. Regards.

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