Waking up in the morning with numbness in the fingers may be caused by improper sleeping position, cervical spondylosis, tenosynovitis, peripheral neuritis and other reasons. 1. Improper sleeping position: sleeping at night for a long time without changing the sleeping position, it will lead to local blood circulation is not smooth, such as often lying on their stomachs to sleep, or one side of the sleep, will be triggered by numbness in the hand. This is not to worry too much, after a period of time will recover on its own. 2. Cervical spondylosis: the cervical spine plays a role in innervating the sensory nerves of the upper extremities, if the cervical spine lesions, compression to the control of the hand sensory nerve area, there will be numbness of the fingers. Massage and acupuncture can be taken to relieve the symptoms. 3. Tenosynovitis: the most typical symptoms of tenosynovitis are joint pain, numbness of the fingers, and in more serious cases, dysfunction and other symptoms. This requires prompt medical attention and, if necessary, surgical treatment. 4. Peripheral neuritis: Peripheral neuritis may also cause numbness. Other conditions can also lead to wake up in the morning numbness of the fingers, should go to the hospital in time for examination, after the cause is clear, under the guidance of the doctor to carry out the appropriate treatment.