Most common pelvic inlet type in females is the?

• A. Android
• B. Anthropoid
• C. Gynecoid
• D. Platypelloid

Answer: (C)

The shape of the pelvic inlet matters because it sets the space through which the fetus must pass during delivery. In females, the gynecoid pelvis is the most common type. It features a rounded, roomy pelvic brim with a wide transverse diameter, giving a circular to gently oval opening that optimizes passage of the fetal head during labor. This spacious, well-proportioned inlet makes vaginal delivery easiest and is why this shape predominates in women.

Other pelvic shapes—android with a heart-shaped, narrower inlet; anthropoid with an oval inlet elongated front-to-back; and platypelloid with a flat, broad but shallow brim—are less typical in females and can complicate or limit the ease of vaginal birth.