Left-side shoulder pain

Also known as: Left shoulder pain

Left-side shoulder pain symptom guide: what it can mean, possible causes, and when to seek care. Educational only.

Overview

Pain in the left shoulder can come from muscle strain, injury, or inflammation. If they come with chest pain, treat as an emergency. This is general information only, not a diagnosis. Severe, sudden, or fever-related pain needs professional assessment.

Possible causes

Muscle strain or posture
Injury or overuse
Joint inflammation
Infection (less often)

When to see a doctor

See a clinic if left shoulder pain is severe, limits activity, lasts a week, or comes with swelling/fever.