Understanding a Cerebral Palsy Diagnosis 

Most children with cerebral palsy (CP) are diagnosed when they are very young. However, some children are diagnosed later. This can happen when the signs of CP are mild or become more noticeable as a child grows, starts school, or takes part in more complex activities.  

A later diagnosis can bring mixed emotions for children, young people, parents and carers. Finding answers may take time and involve several appointments and assessments. Getting the right diagnosis is important because some other conditions can look similar to CP.  

What Is Cerebral Palsy? 

Cerebral palsy is caused by an injury or change in the developing brain. The brain injury does not get worse over time. However, the way CP affects a child or young person can change as they grow and develop.  

For example, changes may occur in: 

How Is Cerebral Palsy Diagnosed? 

A doctor will look at your child's: 

They may assess how your child: 

The doctor may also organise assessments to better understand your child's: 

Blood tests or genetic tests  may sometimes be recommended to investigate other or underlying causes of your child’s symptoms.  

Brain Imaging Tests 

Brain imaging can help support a diagnosis of cerebral palsy and provide more information about the cause. 

MRI (Magnetic Resonance Imaging) 

An MRI uses magnets and radio waves to create detailed images of the brain. It can show the location and type of brain injury or change.  

CT Scan (Computed Tomography) 

A CT scan uses X-rays to create images of the brain. It may be used in some situations, although MRI usually provides more detailed information.  

Cranial Ultrasound 

A cranial ultrasound is a simple brain scan often used with babies. Some children may have had this test earlier in life.  

Other Assessments 

Some children may need additional tests. 

An electroencephalogram (EEG) measures electrical activity in the brain. It may be used if a child has seizures or if doctors are checking for epilepsy.  

Why a Diagnosis Matters 

A thorough assessment and accurate diagnosis can help children, young people and families better understand their strengths, needs and support options. It can also help guide care and support for: 

Building the Right Support Team 

After a diagnosis, your child may be supported by a team of health, education and community professionals. This team may include: 

Support Can Start Now 

Support does not need to wait until every question has been answered. Early and ongoing support can help children and young people: 

Support can also help families feel informed, supported and confident about the future.  

Looking Ahead 

Your child's support plan should grow and change with them. Health professionals will work with you and your child to understand their goals, strengths and support needs at different stages of life.