The numbness of the hands during a cold is usually due to the following three factors: 1, such as viral cold when the virus invades the nerve roots, will lead to hand numbness and soreness, pain and clinical symptoms, especially for patients with diabetes, peripheral nerve root pain, sensory insensitivity, especially hand numbness as a typical clinical symptom. 2, such as a sudden decrease in blood volume when the cold or body fever, a transient cause of internal ion disorders, hypokalemia 3. If the blood pressure drops too fast or the blood supply is insufficient, the peripheral nerve dysfunction will be caused by the reduced blood supply and insufficient blood supply, and the hands will feel numb and the body will be numb.