Question

A 22-month-old baby accidentally bumped into the fontanelle with my elbow while playing, causing the area to turn red and slightly concave. I’m worried whether it will affect the baby’s development.

Answer

The fontanelle of an infant at this age typically closes and becomes as hard as an adult’s skull, so a minor knock will not affect intelligence or brain development. Observe the baby’s response, and if there are no other abnormalities, there is no need to be overly concerned.