What is the reason for the simultaneous involuntary twitching of hands and feet in a 11-year-old child?

Patient's question:

No

Doctor's answer:

Hello, according to your description, your condition may be caused by calcium deficiency. Calcium deficiency can cause whole-body tremors. You can try taking calcium supplements to see if it helps. If it doesn't work, it is recommended that you go to the hospital for further examination to identify the cause and follow the doctor's advice for treatment.