What causes arm soreness?

Arm pain may have various causes: 1. Chronic muscle strain in the upper limbs: Long-term overexertion, exposure to cold, and similar reasons may lead to chronic injury of the upper limb muscles and fascia. 2. Muscle strain: Sudden movements or twisting during exercise may injure muscles or tendons, causing pain. 3. Nerve compression: Conditions such as cervical spondylosis or sciatica may compress nerves, causing radiating pain in the upper limbs. 4. Poor posture: Maintaining improper posture for extended periods, such as incorrect sleeping posture or prolonged computer use, may also cause soreness. 5. Chronic diseases: Certain chronic conditions, such as fibromyalgia or lupus erythematosus, may cause pain in multiple areas throughout the body, including the arms. In addition, poor lifestyle habits, nutritional deficiencies, arthritis, myofascial inflammation, brachial plexus neuritis, and other factors may also lead to arm pain. If arm pain persists, affects daily life, or is accompanied by symptoms such as swelling, numbness, fever, or others, prompt medical consultation and examination are advised.