Diabetes numbness and stiffness of the fingers after waking up, the symptoms disappear after a little activity, may be due to physiological reasons, such as incorrect sleeping posture; may also be diabetic peripheral neuropathy, cervical spondylosis, cerebrovascular disease. 1. Physiological reasons: If the sleeping position is incorrect at night, compression of the upper limbs, there may be numbness and stiffness of the fingers, the symptoms disappear after a little activity, usually without special treatment, change the sleeping position will be better. 2. Diabetic peripheral neuropathy: long duration of diabetes, poor long-term control of blood glucose, diabetic peripheral neuropathy may occur, which can be manifested as numbness and stiffness of the fingers, but also abnormal sensation, pain and allergy, and other manifestations. 3. Cervical spondylosis: Cervical spondylosis compresses the nerve roots, which may be characterized by numbness and stiffness of the fingers, as well as stiffness and pain in the back of the neck. 4. Cerebrovascular disease: diabetic patients with long-term poor glycemic control, easily combined with atherosclerosis, resulting in cerebral vascular stenosis and obstruction, insufficient blood supply to the brain tissue, there can be numbness of the upper extremities. If diabetic patients wake up with numbness and stiffness of the fingers, the activity of the symptoms disappeared, in the exclusion of physiological reasons, we should go to the hospital in time to find out the cause, according to the cause of the treatment.