Parents and even some clinicians who do not understand the symptoms of cerebral palsy often mistakenly think that this is a sign of calcium deficiency in children. So they buy a lot of calcium supplements and give them to their children. As a result, the best time to treat cerebral palsy is delayed. How do you know if your child has a calcium deficiency? The scientific and simple way is to go to the hospital for a blood calcium level measurement. The normal blood calcium level is 2.18-2.63 mmol/L (9-11 mg/dL), if it is lower than this range, the child is considered to have a calcium deficiency. If calcium is deficient, it must be treated promptly, and parents must follow medical advice to provide calcium for their children. Symptoms of calcium deficiency in children include: difficulty sleeping, easy to wake up, sweating after sleeping, cramps, sternal pain, “X” and “O” shaped legs, chicken breast, gray nails or white marks, anorexia, late intellectual development, late speech, late toddler, starting to toddle only after 13 months of age. Late teething; thinning hair; poor health condition, easily catching colds, etc. Early manifestations of children with cerebral palsy include: easily startled, sleep disorder; indifferent expression; difficulty in swallowing; little active activity, tight or excessively floppy arms and legs; abnormal posture, such as head tilted back excessively, picking up upright with both feet crossed and landing on the toes; inability to lift the head at 3 months, holding hands in fists at 4 months, sitting at 7 months, crawling at 8 months, standing and walking after 1 year old, etc. If you have several of the above symptoms, it is recommended that you go to a regular hospital for examination and treatment as soon as possible.