What causes numbness and pain in the arm?

A numb and painful arm is generally caused by trauma, periarthritis of the shoulder, cervical spondylosis, rheumatoid arthritis, carpal tunnel syndrome, etc. It is recommended to seek medical attention promptly to identify the underlying cause and receive appropriate treatment. Specific analysis is as follows:

1. Trauma

If there has been a sprain or strain, it may lead to muscle, nerve, or joint injury, resulting in numbness, pain, swelling, and other discomfort in the arm. Within the first 24 hours, apply an ice pack or a cold, wet towel for cold compression; after 48 hours, use a hot water bottle or warm towel for heat therapy to help relieve symptoms.

2. Periarthritis of the Shoulder

This may be caused by inflammation of the shoulder muscles, often leading to adhesions and stiffness around the shoulder joint, causing numbness and pain in the arm, shoulder pain, and stiffness. It is recommended to take medications such as acetaminophen tablets, nimesulide tablets, or ibuprofen sustained-release capsules under a doctor's guidance.

3. Cervical Spondylosis

Usually caused by physical strain, this condition may compress nerves or blood vessels, impairing blood supply and thereby causing arm numbness and pain. It may also be accompanied by neck pain and stiffness. Treatment may include medications such as mecobalamin tablets, Shujin Huoxue tablets, or celecoxib capsules, taken as directed by a physician.

4. Rheumatoid Arthritis

This may result from abnormal immune function, potentially causing joint inflammation and pain that radiates to the arm, leading to numbness and pain. Symptoms may also include joint pain, swelling, and limited mobility. Medications such as Qingpeng ointment, diclofenac sodium sustained-release tablets, or methylprednisolone tablets may be used under medical supervision.

5. Carpal Tunnel Syndrome

Usually caused by fractures or dislocations, this condition may compress the median nerve, resulting in numbness, pain, and weakness in the arm. Treatment may involve medications such as meloxicam capsules, triamcinolone acetonide injection, or methylprednisolone injection, used under a doctor’s direction.

In daily life, maintaining healthy eating habits is recommended—eating three balanced meals at regular times without overeating. Consuming nutrient-rich foods such as lean meat, fish, eggs, milk, and carrots can help supplement nutrition and enhance immunity.