The survey incorporates two validated questionnaires for the evaluation of outcomes related to carpal tunnel syndrome. The Boston Carpal Tunnel Questionnaire (BCTQ) is very specific to carpal tunnel syndrome (CTS). The Disability of Arm, Shoulder and Hand (DASH) questionnaire is less specific for CTS but has been shown to have equal validity in the assessment of outcomes in CTS. The relative non-specificity of DASH for CTS can be useful in assessing the possible contribution of CMT to the overall upper extremity symptom severity and functional outcome. Data collected from participants with a diagnosis or therapies for CTS can be compared to data collected from participants with no diagnosis or therapies for CTS.