Final answer:
The optimal time to feel for a suture is when the baby is in the breech position, which may necessitate a Caesarian section due to the complications associated with this childbirth presentation.
Step-by-step explanation:
The number one time to try to feel for a suture is if the baby is in breech position. Breech presentations can complicate childbirth, as the orientation of the infant is buttocks down, which differs from the more common and optimal occiput anterior vertex position, where the smallest part of the head enters the birth canal first. Breech positions may require delivery via Caesarian section, especially if vaginal delivery is deemed too risky. The breech position includes variations such as the complete breech, where both legs are crossed and downward, and frank breech, where the legs are oriented upward. Feeling for sutures during a breech presentation can provide important information about the baby's position and whether it shifted to a favorable position for vaginal delivery, although with today's medical practices, a C-section is often the chosen method of delivery for breech births.