Cerebral palsy is a disorder that affects muscle movement and coordination. It is caused by damage to the developing brain, often before or during birth. There are four main types of cerebral palsy defined by the muscles affected: spastic, athetoid, ataxic, and mixed. Spastic cerebral palsy causes stiff muscles and difficult movement, while athetoid causes involuntary movements and ataxic causes problems with balance and coordination. Treatment focuses on improving quality of life through physical therapy and respecting those with cerebral palsy.