Left arm pain is a common complaint in daily life and can arise from a simple, harmless cause or be a warning sign of serious health problems. This pain can occur across a wide spectrum, ranging from minor conditions such as muscle strain to life-threatening disorders like a heart attack.
Because left arm pain may be a symptom of a heart attack, it is an important sign that should not be ignored; however, not every case of left arm pain indicates a heart problem. The character of the pain, its radiation, duration, and accompanying symptoms provide important clues in determining the underlying cause.
What Causes Left Arm Pain?
Left arm pain can result from various causes. Cardiac-related conditions include heart attack, angina (insufficient oxygen supply to the heart), and inflammation of the heart lining (pericarditis). Musculoskeletal causes include muscle strain, shoulder inflammation (tendinitis), cervical disc herniation, or frozen shoulder. In addition, nerve compression, shingles (herpes zoster), nerve damage (peripheral neuropathy), and stress can also lead to pain in the left arm.
Symptoms of Left Arm Pain
Cardiac-related pain usually starts in the center of the chest and radiates to the left arm, creating a sensation of pressure or tightness, and does not subside with rest. Musculoskeletal pain, on the other hand, typically worsens with movement, may be localized to a specific area, and can be accompanied by signs such as swelling and redness.
Treatment of Left Arm Pain
Treatment depends on the underlying cause. For musculoskeletal problems, rest, ice application, pain relievers, and physical therapy may be recommended. In cases of cardiac-related pain, medication, angioplasty, or bypass surgery may be required. For neuropathic pain, antidepressants, antiepileptic drugs, and B vitamins can be used.
When to See a Doctor?
If left arm pain is accompanied by chest pain, shortness of breath, sweating, dizziness, or nausea, emergency medical attention should be sought immediately. In addition, medical evaluation is recommended for sudden severe pain, pain following trauma, or pain that interferes with daily activities.
