The aim of our study was to examine the effect of different severities of Carpal Tunnel Syndrome on activity and participation within the framework of the International Classification of Functioning, Disability and Health (ICF).

Individuals between the ages of 18-65 who were diagnosed with CTS in the dominant hand and who volunteered to participate in the study were included. SF-36, Quick Disabilities of the Arm, Shoulder, and Hand (Q-DASH), Michigan Hand Outcomes Questionnaire and Boston Carpal Tunnel Questionnaire - Functional Status Scale will be used to assess activity and participation. The questionnaires will be filled out via Google Forms. Shapiro-Wilk test will be performed to determine the distribution of the data. Whether the dependent variables differ between groups will be analysed by One-way ANOVA (continuous). For significant F-test, an additional investigation of differences between groups will be performed with Gabriel's post hoc procedure.

Inclusion Criteria:

• Diagnosis of CTS in the dominant hand
• Being between the ages of 18-65
• Volunteering to participate in the study

Exclusion Criteria:

• Having systemic inflammatory disease
• Having a disease that may cause polyneuropathy such as diabetes mellitus
• Having a pacemaker
• Having a disease affecting the central nervous system
• Having cervical radiculopathy
• History of previous operation or local steroid injection due to CTS

Individuals between the ages of 18-65 who were diagnosed with CTS in the dominant hand and who volunteered to participate in the study were included.