What causes numbness in the right arm?

Generally, numbness in the right arm may be caused by overexertion, cervical spondylosis, cubital tunnel syndrome, shoulder periarthritis, myelitis, or other conditions. It is recommended to seek medical attention promptly, identify the underlying cause, and receive appropriate treatment. Specific analyses are as follows:

1. Overexertion

Prolonged desk work may lead to muscle and nerve fatigue, resulting in numbness in the right arm, accompanied by muscle soreness, stiffness, and other discomforts. It is advisable to rest appropriately, adjust posture, and apply warm compresses to the right arm using a heated towel.

2. Cervical Spondylosis

This condition is usually caused by strain and may compress cervical nerves or blood vessels, impairing blood supply and leading to numbness in the right arm. Symptoms may also include neck pain and stiffness. Treatment may include medications such as mecobalamin tablets, Shujin Huoxue tablets, and celecoxib capsules, used under medical guidance.

3. Cubital Tunnel Syndrome

This may result from fractures or dislocations that compress the nerves in the right arm, causing numbness, pain, and weakness. Medications such as meloxicam capsules, triamcinolone acetonide injection, and methylprednisolone injection may be used under a doctor's direction.

4. Shoulder Periarthritis

This is typically caused by inflammation of the shoulder muscles, which can lead to adhesions and stiffness around the shoulder joint, resulting in numbness in the right arm, shoulder pain, and stiffness. It is recommended to use medications such as acetaminophen tablets, nimesulide tablets, and ibuprofen sustained-release capsules under medical supervision.

5. Myelitis

This is generally caused by spinal cord infection, which may disrupt nerve conduction and lead to the aforementioned symptoms, along with limb weakness and pain. Treatment may include calcium carbonate chewable tablets, potassium chloride sustained-release tablets, and mecobalamin capsules, used under medical guidance.

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