Why does my child always shake their head after waking up?

Patient's question:

Why does the child keep shaking their head after waking up? (Each time) The way they shake their head seems very comfortable! I don't know what factor or cause it is! The child doesn't cry much either! They are still under a month old now. I hope relevant experts can provide a detailed reply! Thank you!

Doctor's answer:

Hello
Infant expert answers:
1. Nighttime head shaking: Refers to head shaking during sleep, which is related to mental retardation.
2. Calcium deficiency-related head shaking: Can cause head sweating, leading to wet hair shaking back and forth on the pillow, resulting in bald spots on the head.
3. Eye disease-related head shaking: (1) Congenital nystagmus. (2) Congenital extraocular muscle developmental disorder. (3) Congenital strabismus.
4. Epilepsy-related head shaking: (1) West syndrome, also known as infantile spasms. (2) Leox syndrome.
(Provided by China Children's Network)
2. It is recommended to have a check-up.