Cephalic presentation in pregnancy refers to the position of the fetus where the head is positioned downwards, leading first into the birth canal. It is the most common and safest presentation for childbirth, with the fetal head entering the pelvis first. The typical form of this presentation is the vertex presentation, where the back of the baby's head (occiput) is the leading part. This head-first position usually occurs in the third trimester as the fetus engages itself in the pelvis in preparation for birth. Variations exist, such as the face or brow presentations, though these are less common. Cephalic presentation is considered optimal for vaginal delivery because it allows the smallest part of the baby's head to navigate through the birth canal most easily.
