Question

A four-month-old baby occasionally shakes their head in a motion that resembles a urine tremor when being held during the day. What could be the cause?

Answer

Based on your description, there could be two situations: one is a congenital growth and development abnormality in the child; the other is that, due to the child’s young age, the neck muscles are not strong enough, causing instability of the head. I suggest you observe for a while to see which situation your child’s condition more closely resembles. Usually, a lack of calcium can also lead to this type of head-shaking symptom. For your baby’s situation, I recommend trying to supplement with calcium, as a four-month-old baby no longer receives enough calcium from the mother to meet the needs of growth and development, and additional supplementation is required.