The numbness of the hands after waking up is caused by the following reasons: 1, cervical spondylosis, feeling numb after waking up is often caused by cervical spondylosis compression to the nerves, the nerve roots of the upper limbs in the neck, if cervical spondylosis compression to the nerve roots will lead to hand numbness and inconvenience in the movement of the upper limbs, etc. The initial diagnosis can be made through the neck X-ray. 2, numbness of the hands after waking up may also be a symptom of peripheral neuritis, many people suffering from peripheral neuritis will have numbness. The first thing you need to do is to get up in the morning with rheumatoid arthritis, and then you will have hand numbness, morning stiffness, swelling of the hand, difficulty in making a fist, etc. You can get a blood test for anti-O and rheumatoid factor. 4, wake up hand numbness may also be caused by cerebrovascular accidents, such as cerebral infarction after the morning numbness in the hands, should promptly go to the hospital for a cranial CT examination to clarify the diagnosis.