Cold arms may be a normal physiological phenomenon and no special treatment is needed. It may also be caused by vascular disease, neurological disease, etc., and can be improved by medication, physical therapy, surgery, etc. 1. Physiological phenomenon: due to individual differences in sensitivity to environmental temperature, some people may feel cold in the normal room temperature environment, but there is no organic disease, generally no special treatment, pay attention to the moderate addition of clothing, avoid cold. 2. Vascular disease: cold arms may be due to vascular occlusive diseases, due to insufficient local blood supply, resulting in cold limbs, common diseases such as arterial thrombosis, vasculitis. According to the specific etiology of the medical advice to be aspirin, clopidogrel antiplatelet, heparin anticoagulation, if necessary, vascular intervention surgery. Prednisone, cyclosporine, etc. can be used in the treatment of rheumatic vasculitis. 3. Neurological diseases: arm cold is a kind of temperature sensation, all kinds of diseases involving the sensory nerve pathway may lead to sensory abnormalities, such as neurogenic cervical spondylosis, Guillain-Barré syndrome. Methylcobalamin, B vitamins can be given to nutritional nerves, cervical spondylosis can also be physiotherapy to improve symptoms, if necessary, surgical treatment. If there is no significant improvement in the coldness of the arms after eliminating the physiological causes, it is recommended to consult a doctor in time to find the cause of the disease and targeted treatment under the guidance of the doctor.