What’s wrong with a seven-month-old baby who keeps shaking his head?

Seven months of the baby is always shaking his head, may belong to the normal physiological phenomenon, but also may be eczema, calcium deficiency and other factors related.
1. Physiological phenomenon: seven-month-old babies currently have their own consciousness, may feel that shaking the head is more fun, or imitation of the actions around the result, this does not need special treatment.
2. Eczema: if the baby has eczema on the neck or the back of the head, the above situation may also occur.
3. Calcium deficiency: Calcium deficiency may also cause babies to shake their heads, accompanied by night terrors and excessive sweating.
Seven months of the baby always shaking his head, there may be other reasons, it is recommended to go to the hospital in time for relevant examinations, clear causes and actively treat the symptoms.