With the widespread use of computers, the number of illnesses caused by computer use is also increasing year by year. According to the U.S. Department of Labor statistics, employees upper body (such as wrists, elbows, shoulders) repetitive strain injury nearly accounted for 2/3 of the reported occupational diseases, and the most common strain injury is “mouse hand”, in order to prevent and control “mouse hand”, it is recommended that we can start from the following aspects: 1. pad high wrist When using the mouse, the arms do not hang in the air. May add a mouse pad wrist to reduce the pressure on the wrist. Move the mouse do not use the wrist force and try to rely on arm force operation, in order to reduce the wrist force; 2. choose the curvature of the mouse choose the mouse is not a big hand with a big mouse, small hand with a small mouse, to feel comfortable as good. The best choice of curvature, wider contact surface, help finger power dispersion of the mouse; 3. 1 hour break is recommended for each continuous use of the keyboard and mouse 1 hour or so, the best break about 15 minutes. Can be active during the break wrist, do some fist, pinch fingers and other relaxing finger movements; 4. Lower the arm When using the computer, the height of the keyboard and mouse, preferably lower than the elbow height when sitting, so as to help reduce the operation of the computer on the wrist, back and neck and other parts of the injury. In the natural droop of the arm, the height of the elbow joint is the height of the keyboard and mouse should be placed; 5. often do finger exercises often active hand joints, repeated 30 times; exercise thumb, fingers straight fist, repeated several times, thumb abduction, rubbing the point of hegu (that is, the tiger’s mouth, in the first metacarpal bone and the second metacarpal bone in the middle of the depression), rubbing pressure on the big fish interval (thumb under the fat); hand holding a rolling pin-like items, do downward rotation The action. Pull and shake the wrist joint in a clockwise or counterclockwise direction with appropriate force for 1 to 2 minutes; in addition, you can also practice twisting the fingers regularly. Use the thumb and index finger of one hand to pinch the fingers of the opposite hand, twist from the root to the tip of the fingers, each finger in turn, and then pull with appropriate force after twisting. The above techniques can be done 1 to 2 times a day. For people with relatively heavy symptoms, it is best to avoid wrist force and cold.