The mouse is a common part of computer hardware. Using the mouse regularly requires us to perform many actions such as repetitive movements of small muscles over a long period of time, such movements can cause discomfort, pain and fatigue. Ergonomic mouse is designed through an analytical and creativity-oriented process to eliminate risk of CTS (Carpel Tunnel Syndrome). A questionnaire was rolled out and according to individual's needs collected from the survey, the design parameters were set. Various questions regarding use of mouse and how extensively they are used, also key problems people face while using the normal mouse were clearly identified and the new ergonomic design of mouse was made keeping in mind of all those problems and responses. Also, various research papers were read and data regarding dimensions and other parameters were collected to act as an aid in designing the ergonomic mouse. Two models with different parameters and angles of hand rest from the base were created to analyze which mouse prototype would be the most suitable for use and ergonomically stable hence user-friendly. Then again field research was carried out with the 3D printed mouse to arrive at the degree of satisfaction of users while using the mouse. Considering the degree of satisfaction achieved while collecting feedback, it could be concluded that the design made for all the three models was ergonomically stable but the third design was the most prevalent and so the creation of the ergonomic mouse has been successful in the research. Also, the complete elimination of aches, pain may not be possible but choosing the right ergonomic mouse, positioning it properly, and being aware of how you are holding your body and using your hand musclescan all help.

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