Woke up hand numbness caused by the following reasons: 1, caused by cervical spondylosis, woke up after feeling numbness in the hand is often cervical spondylosis compression of the nerves lead to the nerve roots of the upper limbs of the neck, if the cervical spondylosis compression of the nerve root will lead to numbness of the hand and upper limb activity, etc., through the neck radiographs can be initially made a diagnosis. 2, woke up hand numbness can also be a symptom of peripheral neuritis, a lot of people suffer from peripheral neuritis will appear hand numbness, especially during sleep due to the slow blood circulation more poor nutrition to the hands. Many people suffer from peripheral neuritis will appear hand numbness, especially in the sleep due to slow blood circulation, the hand nutrition becomes worse, then hand numbness symptoms will be aggravated, manifested as waking up hand numbness. 3, waking up hand numbness is also likely to suffer from rheumatoid arthritis, rheumatoid arthritis in the morning after waking up hand numbness, morning stiffness, that is, the hands are swollen, difficult to make a fist, etc., can be measured by the blood of the Anti O and rheumatoid factor can make a preliminary diagnosis. 4, woke up hand numbness may also be caused by cerebrovascular accidents, such as cerebral infarction in the morning after waking up numbness in the hands, should go to the hospital in time to carry out a cranial CT examination to clarify the diagnosis.