Question
A four-month-old baby, since the hair was shaved off, only has dense hair on the top of the head. The hair on both sides and the back of the head is sparse and short. Some say it might be caused by a calcium deficiency. The baby sleeps peacefully at night and during naps, not crying or fussing, and the fontanelle is very small. The baby takes in vitamin D every day, so is there a need for additional calcium supplementation?
Answer
According to the description, the baby’s hair not growing on the top part may be due to frequent lying down causing head friction, a condition known as “cot baldness,” but it is not necessarily caused by a calcium deficiency. Since the baby is breastfed and timely receives vitamin D, it is usually not calcium deficient. It is recommended to continue taking vitamin D without undue concern. As the baby starts to move more, the hair will gradually become denser.