Soft Spots on a Baby's Head (Fontanelle) — Why They're There and When They Close

Dr. Sandip Gupta

A first-time mother asked: she noticed two soft spots on her baby's head, one at the front and one at the back — is this normal, and why does it happen? The answer: This is basically a normal thing. In the first year, a baby's brain grows very rapidly, and to allow for this there are two soft spots on the head. It is normal and closes on its own. When they close: The small soft spot at the back closes earlier, and the one at the front closes by around 18 months. Pulsation at the front spot: If you place your hand on the front soft spot, you may feel a pulsating sensation — there is no need to panic about this. Relevant for: new parents who have noticed soft spots on their baby's head; parents asking whether the front and back fontanelle are normal; parents wanting to know at what age each soft spot closes; parents who feel a pulse or throbbing at the front soft spot and are worried; and parents asking why a baby's skull has these openings. Disclaimer: This video is for general information and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Every baby is different — please consult your pediatrician if the soft spot appears sunken or bulging, if your baby has fever, vomiting or excessive drowsiness, or if the soft spot has not closed in the expected time.