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Numbness in the right hand can be caused by a number of conditions. Numbness in your right hand means that you have lost the feeling or sensation in your fingers or hand. This can be caused by compression or other irritation of a nerve that travels to the fingers, hand or arm.
By Mayo Clinic Staff. Hand numbness is usually caused by damage, irritation or compression of one of the nerves or a branch of one of the nerves in your arm and wrist. Diseases affecting the peripheral nerves, such as diabetes, also can cause numbness, although with diabetes similar symptoms usually occur first in your feet.