What are the common causes of shoulder pain specifically on the left side?

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, you can check your symptoms with our free AI symptom checker to better understand what might be causing your discomfort before talking to a healthcare provider for more help.