08/10/2026
Mastering fetal skull diameters is crucial for understanding labor and delivery.
This visual guide covers 8 essential measurements, from the suboccipitobregmatic diameter (9.5 cm) seen in a well-flexed vertex presentation to the biparietal diameter (9.5 cm), which is the key transverse diameter for engagement.
Save this quick cheat sheet for your next OB/GYN rotation or NCLEX prep!