Cerebral palsy is a brain condition that impacts a person's ability to use their muscles, as well as their posture and balance. Cerebral palsy is present at birth or in early infancy. According to the Centers for Disease Control and Prevention (CDC), 1 in 323 children have cerebral palsy. Children with cerebral palsy can have drastically different outlooks. Some children with cerebral palsy can walk with or without assistance, while other children will not be able to walk or move freely. In some cases, cerebral palsy is accompanied by other developmental delays.