Introduction to Fontanelles
Fontanelles, or soft spots, are a normal part of a baby's skull. They are areas where the bones have not yet come together, allowing for flexibility and growth. There are six fontanelles in total, but which one closes first?
- Anterior fontanelle (soft spot on top of the head)
- Posterior fontanelle (soft spot at the back of the head)
- Two mastoid fontanelles (behind the ears)
- Two sphenoidal fontanelles (on either side of the head)
Which Soft Spot Closes First?
The posterior fontanelle usually closes first, within 1-2 months after birth. The anterior fontanelle takes longer, typically closing between 12-18 months.