beginning of content

Rett syndrome

6-minute read

Key facts

  • Rett syndrome is a rare genetic disorder affecting mainly females, causing lifelong intellectual and physical disability.
  • Signs usually start between 6 and 18 months of age.
  • The main features of Rett syndrome are loss of speech, fine motor skills and walking ability.
  • Early therapy and support can improve movement, communication and daily living.
  • Ongoing care helps prevent complications such as seizures and scoliosis.

What is Rett syndrome?

Rett syndrome is a rare genetic disorder caused by a mutation (change) in a gene on the X chromosome. It mainly affects females.

Rett syndrome affects the nervous system, causing intellectual and physical disability. While it is a lifelong condition and currently has no cure, treatments and therapies can help manage symptoms, especially if started early.

What are the symptoms of Rett syndrome?

Rett syndrome can cause symptoms ranging from mild to severe, which can begin at different ages in different children. Most children show the first signs of the condition between 6 and 18 months of age. Children are usually diagnosed around 3 years of age.

Some key features of Rett syndrome are:

Children with Rett syndrome may also have slow head growth, small hands and feet, and abnormal muscle tone. They can also experience breathing problems and teeth grinding.

People with Rett syndrome may also:

CHECK YOUR SYMPTOMS — Use the Symptom Checker and find out if you need to seek medical help.

What causes Rett syndrome?

Rett syndrome usually results from a random genetic mutation — a new change that is not passed down from a parent.

When should I see my doctor?

If you are worried that your child is not reaching language and movement milestones at an appropriate age, you may decide to see a doctor. If you have taken your child to the doctor before, they can help compare your child's development with previous visits.

How is Rett syndrome diagnosed?

Children are diagnosed with Rett syndrome based on their symptoms. This can be difficult as not all children have the same symptoms.

Genetic testing can confirm the diagnosis.

ASK YOUR DOCTOR — Preparing for an appointment? Use the Question Builder for general tips on what to ask your GP or specialist.

How is Rett syndrome treated?

Treatment can help manage the symptoms of Rett syndrome.

Therapies such as physiotherapy, occupational therapy and hydrotherapy can help improve movement. Devices and methods are available to help with communication.

Medicines may help with seizures, breathing difficulties or digestion problems.

In some cases, surgery might be recommended for problems with the feet or spine.

Nutrition

People with Rett syndrome may have problems with their teeth and mouth. This can make it hard to eat enough, and children may need help with:

Some people with Rett syndrome need a feeding tube to get enough nutrition.

Living with Rett syndrome

Around 6 out of 10 children with Rett syndrome live into middle age.

People with Rett syndrome will need lifelong personal care with assistance and equipment. Each person's needs depend on their individual symptoms.

Your child may be eligible for early intervention support through the National Disability Insurance Scheme (NDIS), which can help you access supports.

What are the complications of Rett syndrome?

Rett syndrome can lead to:

Can Rett syndrome be prevented?

Currently, there is no known way to prevent Rett syndrome. However, the complications of Rett syndrome can be prevented by getting treatment and support early.

FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

Resources and support

Languages other than English

Information for Aboriginal and/or Torres Strait Islander peoples

Check your symptoms Find a health service

Healthdirect 24hr 7 days a week hotline

24 hour health advice and information you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information