Cold Hands and Numbness: 8 Medical Causes to Investigate

Cold, numb hands can signal several conditions:

1. Hypothyroidism: Low thyroid hormone → cold intolerance, peripheral numbness.
2. Raynaud's phenomenon: Vasospasm in fingers/toes → color changes, numbness, cold.
3. Systemic sclerosis (scleroderma): Autoimmune vascular damage → skin thickening, Raynaud's, numbness.
4. Peripheral neuropathy: Nerve damage (diabetes, medications, B12 deficiency, alcohol) → numbness, tingling.
5. Vitamin B12 deficiency: Impairs nerve function → paresthesias.
6. Rheumatoid arthritis: Joint inflammation compresses nerves (e.g., carpal tunnel).
7. Atherosclerosis: Reduced hand perfusion (risk factors: HTN, high cholesterol, diabetes, smoking).
8. Cervical radiculopathy: Neck nerve root compression → radiating hand symptoms.

Action: See a clinician for focused history, exam, and targeted testing (labs, NCS/EMG, imaging) to identify the cause.