What should be checked for numbness in the hands

Hand numbness usually requires examination of cervical spine, nerves, blood vessels, and metabolic related items, including cervical magnetic resonance imaging, electromyography, blood glucose, thyroid function, and upper limb vascular ultrasound. There are various reasons for numbness in the hands, and clarifying the direction of examination can help with targeted treatment. Cervical magnetic resonance imaging is the primary examination for detecting numbness in the hands, as cervical disc herniation or osteophyte compression of nerve roots are common causes, often accompanied by neck and shoulder pain or radiating pain in the arms. Electromyography can evaluate the functional status of peripheral nerves and be used to diagnose carpal tunnel syndrome or cubital tunnel syndrome. Patients may experience numbness in the thumb, index finger, or little finger. Blood glucose detection is used to exclude diabetes peripheral neuropathy. Long term poor blood glucose control will lead to peripheral nerve injury. At this time, hand numbness is often symmetrical and worsens at night. Thyroid function examination can help detect mucous edema and nerve compression caused by hypothyroidism, which may be accompanied by cold sensitivity, fatigue, or weight gain in patients. Upper limb vascular ultrasound is used to check for stenosis or thrombosis in the subclavian or axillary arteries. Numbness caused by vascular problems usually worsens after moving the arm and may be accompanied by pale or cold skin.

In daily care, it is recommended to avoid prolonged posture of bowing or wrist flexion, and to move the neck and wrist appropriately every hour of work. Pay attention to keeping your hands warm and avoid aggravating blood vessel constriction due to cold stimulation. Moderate intake of foods rich in B vitamins, such as whole grains and lean meat, can aid in nerve repair. If numbness persists or is accompanied by muscle atrophy or weakness, timely medical attention should be sought to complete the above examinations, and physical therapy or medication intervention should be carried out under the guidance of a doctor to avoid delaying the condition.