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What causes numbness in hands?

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Quick Answer

Causes of numbness in hands include Type 2 diabetes, Lyme disease, multiple sclerosis, carpal tunnel syndrome and damage to the arm and wrist nerves, according to Mayo Clinic. Spinal cord injury, Sjogren's syndrome, Raynaud's disease, peripheral neuropathy and syphilis are other possible causes of hand numbness.

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Although hand numbness rarely occurs as a result of life-threatening medical conditions, patients should seek immediate medical care if they experience serious associated symptoms such as talking difficulty, paralysis, confusion and dizziness, states Mayo Clinic. Persistent numbness or numbness that spreads to other body parts calls for immediate medical attention.

To diagnose the underlying cause of hand numbness, a doctor seeks information about the patient's symptoms, including whether the numbness is persistent, whether it appears and disappears, whether both hands are affected or whether the condition spreads, states Mayo Clinic. Additionally, the doctor may perform diagnostic tests. Upon diagnosis, the doctor recommends a suitable treatment of the underlying problem.

Hand numbness is a condition in which one or both hands lose sensation, possibly leading to weakness in the arms, fingers or hands, according to Mayo Clinic. In most cases, symptoms that accompany hand numbness include a feeling of pins and needles and a burning sensation.

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