Cerebral blood supply insufficiency does not usually cause lumbar coldness. Symptoms of patients with cerebral blood supply insufficiency are headache, dizziness, and lack of concentration. Cerebral blood supply insufficiency is a series of comprehensive symptoms resulting from insufficient cerebral blood supply, which makes it difficult to meet the metabolic demands of brain tissues. Its etiology is related to transient ischemic attack, diabetes mellitus, hyperlipidemia, chronic heart failure, smoking, irregular life and other factors. Patients usually do not have the condition of lumbar fear of cold, and the symptoms of cerebral blood supply insufficiency are headache, dizziness, blurred vision, lack of concentration, limb weakness, numbness of a single limb, and fainting. If the environment is too cold, wearing too few clothes and other physiological factors, may lead to the patient to appear waist cold, or consider anemia, hypothyroidism and other diseases, should pay attention to, need to identify the cause of the disease in a timely manner. If the patient appears to be afraid of cold waist, you need to go to the regular hospital in a timely manner, to carry out the relevant examination, in order to clarify the cause of the disease and actively take relevant therapeutic measures, so as to avoid delays in the condition.