Why Does My Elbow Hurt When I Extend It?

When you extend your elbow, the muscles and tendons around the joint work together. Repetitive movements or overuse can cause inflammation of these tendons. A common condition called tennis elbow occurs when tendons on the outside of the elbow become inflamed and irritated. You don't need to play tennis to develop this condition—any repeated motion like lifting, gripping, or twisting can strain these tendons. This strain can create tiny tears in the tendon fibers, causing pain when you fully extend your arm. Various tendon conditions around the elbow can cause similar symptoms. The pain you feel when extending your arm may come from these small tears and inflammation, which prevent the tendon from moving smoothly. Identifying and avoiding activities that trigger your symptoms will help reduce strain. Applying ice and taking non-steroidal anti-inflammatory medications can help relieve swelling and discomfort. If you experience persistent pain or worsening symptoms, you can check your symptoms to better understand what might be causing your discomfort and when to seek medical attention.