Cerebral Palsy Symptoms
Cerebral palsy is a serious disability caused by damage to a baby's brain during pregnancy or childbirth. Cerebral palsy is a permanent condition that affects thousands of babies each year. Although there is no cure for cerebral palsy, early detection and treatment are very important to improve the child's long-term quality of life. Understanding the unique symptoms and indicators of cerebral palsy is an important part of early detection and diagnosis.
Cerebral palsy is a not really a single condition with uniform symptoms. There are actually 4 different recognized types of cerebral palsy: (1) spastic; (2) dyskinetic; (3) ataxic; and (2) mixed. Each specific type of cerebral palsy has a very unique set of outward physical symptoms.Spastic Cerebral Palsy - Symptoms
Spastic CP is the most widespread form of cerebral palsy, accounting for about 8 out of 10 cases. The characteristic symptom of spastic CP is stiffness or sudden freezing of the muscles during movement (a condition known as hypertonia). When a normal person moves the brain is signaling certain muscles to engage while other muscles relax. In other words, the brain gives a green light signal to some muscles and a red light signal to others. In a person with spastic cerebral palsy, however, these signals from the brain are distorted. Instead of signaling certain muscles to relax while others engage, the brain signals both muscle groups to engage at the same time - both muscles get green lights. The result is similar to what would happen at an intersection if all lanes of traffic got green lights - a jam. The simultaneous activation of opposing muscle groups causes the muscles to stiffen, contract and freeze. There are different subtypes of spastic cerebral palsy based on what area of the body is disabled by the muscle spasticity. Spastic CP is usually easier to identify early on compared to other types of CP. So the diagnosis of spastic CP can often occur earlier in a child's development.Dyskinetic Cerebral Palsy - Symptoms
Dyskinetic CP causes both sudden muscle stiffness and contractions (hypertonia) and lack of muscle toon or excessively relaxed muscles (hypotonia). As a result, children with dyskinetic CP have abnormal posture and disabling involuntary movements that a variable in nature. These symptoms are particularly noticeable during movements. Common involuntary movements associated with dyskinetic CP include:
- Repetitive twisting motions (dystonia)
- Slow, convulsive, writhing movements (athetosis)
- Faster, jerky movements usually in the arms and shoulders (chorea)
The least common form of cerebral palsy is ataxic CP. Children with this rare form of cerebral palsy suffer from a pronounced lack of balance, depth perception, and muscle coordination. Ataxic CP will often result in a very unsteady or wobbly walk with feet abnormally far apart. Any sort of fine motor movements such as writing will be particularly difficult. Some children with ataxic CP also experience "intention tremors" which cause their hands or arm to shake as they attempt to reach for something or perform a particular movement.Mixed Cerebral Palsy - Symptoms
Mixed CP includes individual cases of cerebral palsy that involve a combination of 2 or more types. The most common form of mixed CP involves a combination of spastic and dyskinetic symptoms.General Cerebral Palsy Symptoms by Age
Cerebral palsy is not a single, unified disorder but rather a cluster of related disorders involving the brain's ability to control body movements. There are 4 different types of cerebral palsy all of which have somewhat different physical symptoms and characteristics. Even within the same type of CP individual symptoms can vary significantly depending on severity, subtype, and environmental factors. This makes it somewhat difficult to accurately list universal symptoms of cerebral palsy.
Signs of CP in Babies Under 6 Months:
- Baby not able to lift head by 6 months - neck appears limp
- Lack of muscle tone, baby feels floppy like a "rag doll"
- Excessive muscle stiffness and rigidity
- Arched back crying and pushing away when held
- Scissored or crossed legs with abnormal stiffness
- Sudden contractions when attempting to move (spastic paralysis)
Signs of CP in Babies Over 6 Months:
- Baby is incapable of rolling over and lays limp
- Cannot bring hands together
- Unable to bring hands to mouth or face
- One side of the body appears limp with a clenched fist.
- Involuntary movements
- Failure to meet development milestones
- Abnormal posture
- Speech, hearing or vision difficulties
Signs of CP in Babies Over 10 Months:
- Awkward crawling where baby appears to favor one side while dragging the other
- Does not crawl on all fours and instead drags butt or hops on knees
- Poor fine motor skills
- Limited range of motion
- Slow development