Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Stiff person syndrome ?
    ### Response:
    Is genetic testing available for stiff person syndrome? Genetic testing is not available for stiff person syndrome, as the underlying genetic cause (if any) has not yet been established. How is stiff person syndrome diagnosed? A diagnosis of stiff person syndrome (SPS) is typically made based on the presence of the characteristic symptoms, a detailed medical history, a thorough clinical exam, and various tests.
    