← Back to guidesHome
Shoulder5 min read

Pain in the left shoulder and arm

Muscular and postural causes of left shoulder pain, and when it is urgent to consult a doctor.

Pain in the left shoulder and arm causes concern because it can be associated with heart problems. However, in most cases it has muscular or articular origin.


Frequent causes


Trapezius contracture: The trapezius muscle connects neck, shoulders and back. Its tension is very common due to stress or poor posture.


Rotator cuff: Inflammation or tear of the shoulder tendons. Causes pain when lifting the arm.


Cervicalgia with radiation: Neck nerves can compress and send pain to the left shoulder and arm.


When it is urgent — call 112


Left shoulder and arm pain is a cardiac warning sign if accompanied by:

  • Pressure or pain in the center of the chest
  • Sudden cold sweat
  • Nausea or dizziness
  • Difficulty breathing

    • When to act?


    If the pain is muscular and not accompanied by general symptoms, observe and apply heat. If it persists more than a week, consult your doctor.

    Related guides

    Chest / ThoraxWhy does my chest hurt when breathing?
    →
    Lower BackLower back pain: causes and when to worry
    →

    Do you have this symptom?

    Use our symptom guide to get personalized information about your specific case.

    Analyze my symptom →See more guides
    This article is informational and educational. It does not replace professional medical evaluation. If in doubt, consult your doctor or call emergency services.