What does it mean when the shoulder of left arm starts hurting?

Pain on the shoulder of left arm can be caused by different reasons, including:

- Muscle strain: excessive activity or overuse of the shoulder muscles can cause muscle strain, leading to pain.

- Tendinitis: inflammation of the tendons that connect the muscles to the bone. Bicep tendinitis and rotator cuff tendinitis are common forms that affect the left arm.

- Dislocation or subluxation: trauma or extreme movements may result in a dislocation or subluxation of the shoulder joint, causing significant pain.

- Arthritis: conditions such as osteoarthritis and rheumatoid arthritis can affect the shoulder, causing inflammation and pain over time.

- Impingement syndromes: conditions like subacromial impingement occurs when the rotator cuff tendons become trapped between the shoulder blade and the humerus bone, leading to pain.

- Frozen shoulder: adhesive capsulitis is a condition where the shoulder capsule thickens and tightens, causing stiffness and pain.

- Cervical radiculopathy: compression or irritation of the nerve roots originating from the neck can sometimes result in shoulder pain.

It's essential to consult a healthcare professional for an accurate diagnosis and appropriate treatment for your specific condition.

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