What causes tingling and numbness in hands and feet?

That “pins and needles” feeling — we’ve all had it after sitting too long. But if it’s happening regularly, especially in your hands or feet, it could be a sign of nerve involvement.

Common causes include:

• Nerve compression (like carpal tunnel or sciatica)
• Diabetic neuropathy – High blood sugar can damage nerves over time
• Poor circulation
• Secondary Raynaud's
• Vitamin deficiencies (like B12)
• Spinal conditions – Herniated discs or spinal stenosis can affect nerve roots
• Autoimmune conditions – Like multiple sclerosis or rheumatoid arthritis

At Medici, we do thorough testing to get to the root cause, not just treat the symptom. If your numbness or tingling is sticking around — don’t ignore it. Early care = better outcomes.