Question

A 1-year-and-2-month-old baby has been crying at night for about a month. Microelement tests have shown iron and zinc deficiencies, and the 25-hydroxy vitamin D concentration is 62.24. What could be the cause?

Answer

Nighttime crying in babies of this age is typically due to calcium deficiency. While iron and zinc deficiencies may require oral supplements, they do not directly cause nighttime crying. Babies should start taking cod liver oil around half a month after birth to promote calcium absorption. If calcium deficiency is severe, additional calcium supplements can be given. This explains what to do when a 1-year-old baby cries at night for about a month, hoping parents can help the baby overcome the problem and maintain a healthy life every day.