When do fontanels close?

Fontanels, or soft spots on a baby's skull, typically close at different stages during the first year of life. The anterior fontanel, located at the top of the head, usually closes between 12 to 18 months, while the posterior fontanel, found at the back, typically closes by 2 to 3 months of age. These closures allow the skull to harden and support brain growth as the child develops. Regular pediatric check-ups monitor these changes to ensure proper growth.