Always cold feet may be related to environmental factors, or it may be caused by autonomic dysfunction, diabetic peripheral neuropathy, vascular factors and so on. 1. Environmental factors: If you stay in a cold environment for a long time without paying attention to keeping your feet warm, it may cause your feet to be always cold. 2. Autonomic dysfunction: this disease is usually caused by long-term mental stimulation, poor living habits and other factors, which can lead to dysfunction of the autonomic nervous system, which may cause feet always cold, and may be accompanied by dizziness, insomnia and other symptoms. 3. Diabetic peripheral neuropathy: this disease can make the patient’s peripheral nerve damage, resulting in impaired blood circulation in the nerve endings, which may cause cold feet, accompanied by numbness, weakness and other symptoms. 4. Vascular factors: common in the lower extremity arterial thrombosis, varicose veins and other diseases, can lead to patients with lower extremity blood circulation disorders, resulting in always cold feet, can also be accompanied by lower extremity soreness, fatigue and other symptoms. Feet are always cold, if accompanied by other discomforts, it is recommended to consult a doctor as soon as possible to diagnose the cause and then give targeted treatment.