What Does It Mean if a Fetus Is in the Posterior Position?

The fetal position is the position of the first exposed part in the maternal pelvis, that is, the four phases of the pelvis-left front, right front, left rear, and right rear. The representative bone of the top exposed is the occipital bone (abbreviated as O); the representative bone of the hip exposed is the sacrum (abbreviated S); the face exposed first is the mandible (mentum, abbreviated M); The representative bone is scapula (abbreviated as Sc).

Fetal head position

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The fetal position is the position of the first exposed part in the maternal pelvis, that is, the four phases of the pelvis-left front, right front, left rear, and right rear. The representative bone of the top is the occipital bone (occipital, abbreviated as O);

The writing of the fetal position is indicated by three aspects: 1. Representing the bone on the left or right side of the pelvis, abbreviated as left (L) or right (R); 2. Representing the name of the bone, such as "top" when exposed first "O",

Fetal

Based on clinical symptoms and signs, a general diagnosis can be made. If the diagnosis cannot be confirmed, ultrasound examination can be used. Ultrasonography can accurately diagnose shoulder exposure and can determine the specific fetal position.

If the birth process has progressed for a long time, the fetal back or abdomen is the first exposed part, then it has edema and is pressed into the pelvic opening, making it difficult for the examiner to distinguish. During the examination, pay attention to whether the uterus is ruptured, the size of the fetus, and the relationship between the exposed part and the pelvis in order to determine the delivery method.