4. Electrolyte Imbalance
Imbalanced levels of calcium, potassium, or sodium in the body can affect nerve function, leading to tingling sensations. Such imbalances often result from dehydration, medications, or underlying health conditions.

5. Diabetes and Peripheral Neuropathy
Chronic high blood sugar in diabetes can damage peripheral nerves, causing numbness, tingling, or burning sensations in the hands and feet. This condition, called diabetic neuropathy, affects about half of people with diabetes.

6. Neck or Spinal Issues
Conditions like herniated discs or age-related spinal degeneration can compress nerves in the neck, resulting in tingling in the arms and hands. These symptoms may be accompanied by neck pain or stiffness.

7. Autoimmune Disorders
Diseases such as rheumatoid arthritis or Guillain-Barré syndrome can damage nerves and cause tingling. They are often associated with other symptoms like joint pain, muscle weakness, or inflammation.

8. Poor Circulation
Reduced blood flow due to conditions like Raynaud’s phenomenon or arterial plaque buildup can cause tingling in the hands, particularly in cold environments.

9. Nerve Compression by Cysts or Tumors
Non-cancerous growths, such as ganglion cysts, can press on nerves in the hands, leading to numbness, tingling, or limited joint movement.

10. Infections
Infections such as shingles or Lyme disease can impact nerve function, causing tingling in the hands and other areas of the body.

When to Seek Medical Attention
While occasional numbness is typically harmless, persistent or severe symptoms may signal a more serious issue. Seek immediate medical help if you experience:

Paralysis or muscle weakness. Slurred speech or confusion. Dizziness or loss of coordination. Numbness spreading to other areas of the body.
Understanding the potential causes can help guide you in managing symptoms or seeking appropriate care when needed.