So how do you know if a child has cerebral palsy? How is that diagnosis reached?
Generally you look for abnormal observations and abnormal imaging results.
Are you noticing trouble walking, gripping or talking? If so then start asking around and doing some more in depth research. Talk to your pediatrician.
Here’s an article about spastic cerebral palsy and one family’s story about getting a diagnosis of cerebral palsy. — The article is at the "Cerebral Palsy Symptoms" Blog
Back in 2005 I posted about the common symptoms of cerebral palsy.