1. The nervous system is not well developed: newborn children often shake their heads from side to side, and the whole body is flushed with effort, and suddenly the whole body trembles, which is often a normal physiological phenomenon.

2. Sleeping is uncomfortable: When children shake their heads while sleeping, parents should first check whether the room temperature is too high or the quilt is too thick.

3. Expression of will: Children aged 6-1 months are also prone to shake their heads, which mostly happens when they are happy, unhappy or falling asleep.

4. The vestibular system is underdeveloped: children often shake their heads or even bump their heads and sway their bodies, which may be caused by the underdeveloped vestibular system.

5. Eczema: Eczema is a common skin disease in infants and young children. It is characterized by itching and burning sensation in the affected area. The skin around the auricle is found to have small spotted rashes, blisters and serous exudation.

6. Calcium deficiency: When children are calcium deficient, they will also shake their heads, accompanied by crying, poor sleep quality, stunted growth and excessive sweating.

7. Otitis media: If children not only shake their heads, but also scratch their ears, cry, have runny nose, get angry easily, have earache, have a fever, have pus in their ears, and sleep badly, mothers should pay attention to whether children suffer from otitis media.

8. Tourette's syndrome: Tourette's syndrome is common in infants, and it is more common in introverted, shy, timid, sensitive and unsociable children. When something goes wrong, or when you have a cold or are tired, your symptoms will get worse.