Two year old babies sometimes head trembling may be related to environmental factors, but also may be caused by calcium deficiency, eczema and other factors. 1. Environmental factors, if you often let the baby in a higher temperature environment, may lead to excessive sweating of the head, the body is uncomfortable, so this symptom may occur. 2. Calcium deficiency, if the baby’s body lacks calcium, may lead to increased nervous system excitability, two-year-old baby sometimes head tremor symptoms, but also may appear excessive sweating, occipital baldness and other reactions. 3. eczema, if the baby has eczema, scalp has more red rash, itching, may produce this symptom. Two-year-old babies sometimes head trembling may also have other causes, such as epilepsy, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.