Rett Syndrome

Also known as: RTS, RTT, Rett’s disorder.

What is Rett syndrome?

Rett syndrome is a genetic condition that impacts the development of the brain. The primary result is that the muscles that control speech, body movements and the eyes don’t work as well as they should. Girls are the primary victims of the disorder.

What causes Rett syndrome?

Rett syndrome is caused by a genetic mutation. In most instances, this occurs randomly and is not passed down from parents to children.

What are the symptoms of Rett syndrome?

Symptoms of Rett syndrome most often appear between the ages of 12 and 18 months. They include growth delays, unusual hand and eye movements, trouble breathing, declines in movement, coordination and communication and other troubling complications.

What are Rett syndrome care options?

Though there is no cure for Rett syndrome, a variety of different medications and treatments can help provide support. Physical therapy, occupational therapy, speech-language therapy and others can help people with Rett syndrome live the best life possible.

Reviewed by: Paul A Cardenas, MD

This page was last updated on: 3/23/2026 5:00:13 PM