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    Rett Syndrome Directory

    Rett syndrome is one of the autism spectrum disorders. It is mainly diagnosed in young girls. Follow the links below to find WebMD's comprehensive coverage about how Rett syndrome is caused, symptoms, how to treat it, and much more.

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    • Rett Syndrome: What Are the Symptoms and How is it Treated?

      Rett syndrome is a rare neurological disease that affects mostly girls. Learn the symptoms and how this disorder is treated.

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      Pervasive developmental disorders (PDDs) are now called autism spectrum disorder. Find out what it means.

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      As the name indicates, autism spectrum disorder includes a number of conditions with different symptoms. Learn about what autism is and how it’s diagnosed.

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      The causes of autism aren’t clear. But the symptoms are not hard to spot. The key often is watching for developmental milestones. Learn about the signs of autism.

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