Published on: 4/28/2025
Left shoulder pain is often caused by problems like rotator cuff tendonitis, shoulder impingement syndrome, or other issues with the muscles and joints in your shoulder.
When you feel pain in your left shoulder, it can be due to several reasons. One common cause is rotator cuff tendonitis, which means the tendons that help you move your arm become irritated or inflamed. Another frequent issue is shoulder impingement syndrome. This happens when the space in your shoulder is too tight, and the tendons get pinched as you move your arm. Sometimes, the pain may also come from arthritis or wear and tear of the cartilage in the shoulder joint. Other times, repetitive movements or heavy lifting can strain the muscles and joints, leading to pain. A doctor often asks about your daily activities and what makes your pain better or worse. They might check your shoulder with physical exams or even ask for x-rays or ultrasounds to see what is happening inside. Treatments usually start with rest, gentle exercises, and using ice or heat to reduce pain. Sometimes, medications are used to lower inflammation. If the pain keeps bothering you or limits how you move your arm, it is important to talk to a healthcare provider for more help.
(References)
Mitchell C, Adebajo A, Hay E, Carr A. Shoulder pain: diagnosis and management in primary care. BMJ. 2005 Nov 12;331(7525):1124-8. doi: 10.1136/bmj.331.7525.1124. PMID: 16282408; PMCID: PMC1283277.
Creech JA, Silver S. Shoulder Impingement Syndrome. [Updated 2023 Apr 17]. In: StatPearls [Internet].
Varacallo MA, El Bitar Y, Mair SD. Rotator Cuff Tendonitis. [Updated 2023 Aug 4]. In: StatPearls [Internet].
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