Question
What is the normal range for a 5-month-old baby’s fontanelle?
Answer
A 5-month-old baby’s fontanelle being around 1.0 cm is considered normal. The growth of the head circumference is not related to the size of the fontanelle, which usually closes around 18 months of age. The baby’s head circumference increased by 3 cm from 42 days to 4 and a half months, which is a normal growth. Parents can take the baby outdoors to get sunlight and give them one fish oil capsule per day. There is no need for additional calcium supplements, as most children’s fontanelles close around 18 months of age.