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Why Do I Have Pain Under My Left Rib Cage?
Understanding Left Rib Pain Causes
March 31st, 2026
Why Do I Have Pain Under My Left Rib Cage?
Pain under the left rib cage can stem from several organs and structures in that area. The most common causes include muscle strain from physical activity, gas trapped in the colon, or inflammation of the stomach lining (gastritis). More serious conditions like an enlarged spleen, kidney stones, or heart problems can also cause left-sided rib pain. Approximately 15-20% of rib cage pain is related to digestive issues, while 10-15% stems from musculoskeletal problems. The pain's characteristics matter - sharp, stabbing pain often indicates muscle or nerve issues, while dull, aching pain may suggest organ involvement. If pain persists for more than a few days, worsens with breathing, or accompanies fever or nausea, seek medical evaluation promptly.
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