What causes a child not to be able to speak or walk?

Patient's question:

6 months discovered unable to straighten head, toes touching the ground, hands behind the back

Doctor's answer:

Consider whether there are issues with intellectual development, as well as the possibility of symptoms of autism or ASD. It is recommended to first visit a regular hospital for an intellectual assessment. If the child has intellectual disabilities, it is advised to seek early treatment at the pediatric rehabilitation department of a hospital for standardized care.
We know that pediatric neurology diseases can cause significant harm to children. If treatment is delayed or incorrect, the condition can progress rapidly, bringing great harm to the child. Therefore, parents should pay close attention to their child's condition and seek timely medical treatment.