Medical Conditions That May Cause Tingling or Numbness
Sometimes, hand numbness is connected to broader health concerns, particularly those that affect nerve health or blood circulation. Examples include:
Diabetes: A common cause of nerve damage, especially in the extremities (diabetic neuropathy).
Migraines: Some people experience tingling or numbness as part of a migraine aura.
Multiple Sclerosis (MS): A disease of the central nervous system where numbness is a frequent early symptom.
Stroke: Sudden numbness, especially on one side, can indicate a stroke and needs emergency care.
Viral infections like shingles or herpes, which can affect nerve pathways.
Raynaud’s phenomenon: A condition where blood vessels constrict, especially in fingers and toes, causing numbness and coldness.
Hypothyroidism: An underactive thyroid can sometimes cause swelling that presses on nerves.
Other Possible (But Less Common) Causes
Side effects from medications.
Vitamin B12 deficiency, which is critical for healthy nerve function.
Heavy alcohol use, which over time can lead to nerve damage.
Electrolyte imbalances, such as low calcium, potassium, or sodium.
Infections like Lyme disease or other tick-borne illnesses.
When to Contact a Healthcare Professional
Occasional tingling in your hands, especially after pressure or poor posture, is usually no cause for concern. However, if numbness becomes frequent, persistent, or is accompanied by other symptoms, it’s best to talk to your doctor.
Your provider may ask detailed questions about your symptoms and medical history. To find the cause, they might order tests such as:
Blood work to check for vitamin levels, thyroid function, or underlying illnesses.
Imaging (X-ray, CT scan, MRI) to look for nerve compression or other structural issues.
Nerve studies like EMG (electromyography) to measure nerve and muscle activity.
Once diagnosed, treatment will vary depending on the cause. Some people may only need rest, wrist splints, or nutritional supplements. Others might benefit from physical therapy, medications, or in rare cases, surgical intervention.
Preventing Hand Tingling and Numbness
