Numbness of fingers in the middle of the night is generally considered to be caused by local nerve compression, peripheral neuropathy, cervical spondylosis or cerebrovascular disease. 1. Local nerve compression: If you sleep in the middle of the night in an incorrect position, pressing on one side of the arm or hand, resulting in local nerve compression, the phenomenon of numbness in the middle of the night will occur. 2. Peripheral neuropathy: commonly seen in peripheral neuritis, Guillain-Barre syndrome, etc., involving the peripheral nerves, resulting in numbness of the fingers in the middle of the night. 3. Cervical spondylosis: due to the cervical disc herniation or local stimulation of the nerve root impact, sleep at night due to the pillow is not suitable, the head position is not correct and so on can lead to the aggravation of the symptoms, resulting in the middle of the night numbness of the fingers. 4. Cerebrovascular disease: due to insufficient blood supply to the brain, local nerve ischemia and hypoxia, numbness of the fingers and arms will occur. If the numbness of the fingers in the middle of the night, it is recommended to go to a regular hospital as soon as possible, and cooperate with the doctor to improve the relevant examinations, such as CT, magnetic resonance, etc., to clearly diagnose the cause of the disease and timely treatment.