Patient's question:
The baby is now 1.5 years old, but the fontanel has not closed yet, and it's about the size of a little finger. It's jumping up and down. Some people say it's due to calcium deficiency, but I've been giving him calcium supplements, so how can he still be deficient in calcium? Could it be a medical condition? How should I deal with an 1.5-year-old baby whose fontanel has not closed?Doctor's answer:
Hello, the anterior fontanelle is about 1.5 to 2 cm in size at birth and gradually increases as the skull develops. It gradually ossifies and becomes smaller around 6 months of age, closing around 1 to 1.5 years old. The posterior fontanelle is very small at birth and typically closes by 6 to 8 weeks after birth. Delayed closure of the anterior fontanelle is often seen in rickets. You can continue taking oral calcium supplements and are advised to take medications that promote calcium absorption.The standard weight for a 1.5-year-old baby is approximately 28 jin (age x 280 kg). The standard height is approximately 82.5 cm (age x 5 + 75 cm). The little baby is currently very normal and healthy.