If your baby has trouble learning to roll over, sit, crawl or walk, see your pediatrician. Delays in development and problems controlling movement or posture may be early signs of cerebral palsy (CP), a group of chronic disorders that stem from abnormalities or damage to the brain.
Cerebral palsy begins before, during, or after birth in the first years of life. Premature babies and others with low birth weight are at greater risk for it. Infection, head injury and other factors can cause CP, but most of the time no one knows why it happens.