Pain in my right index-finger knuckle?!

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You will probably need to have that finger x-rayed as it may have a fracture. Go to your primary care physician and have it checked.

Retired MD.

Right hand (ie wrist joint syndrome)
Cause of the disease: long-term use computer keyboard and mouse, may be called a disease process is linked wrist joint syndrome, there index finger or middle finger pain, numbness, powerlessness and thumb muscles, develop nerve damage may result, thereby causing hand muscle atrophy. The problem is repeated every day typing on the keyboard or move the mouse, the wrist joint long-term, intensive, repeated and excessive activity, resulting in peripheral nerve injury or oppression, the nerve conduction is blocked, resulting in occurrence of the palm of the sensory and motor disorders.
1. Using the mouse, the arm will not suspended, in order to reduce the pressure on the wrist, move the mouse when not to use the wrist and arm strength by doing as much as possible to reduce wrist stress
2.Do not be too hard on the keyboard and the mouse buttons, easy to moderate force for good.
3. Mouse best selection of arc large, wide exposure, there is the dispersion of power.
4. To use the mouse with the use of "mouse wrist pad" pad in the wrist.

Check w doctor