The evaluation of Tourette's syndrome begins with a history and physical examination.

With the exception of tics, the physical examination in someone with Tourette's syndrome is normal.

The diagnosis of Tourette's syndrome can often be made without testing. In some cases, it may be necessary to perform tests to exclude other conditions that could cause symptoms similar to Tourette's syndrome.

Tests that may be used to evaluate Tourette's syndrome include:

• CT scan of the brain
• MRI scan of the brain
• PET scan
• Lumbar puncture
• Electroencephalogram: