What is the primary symptom of tendonitis?

The primary symptom of tendonitis is pain. This condition occurs when a tendon, which is the fibrous tissue that connects muscles to bones, becomes inflamed or irritated, often due to repetitive movements or overuse. The pain associated with tendonitis is typically localized to the affected tendon and can vary in intensity, often worsening with movement or activity. Patients may experience tenderness and discomfort when pressing on the area, and the pain might be accompanied by additional symptoms such as swelling, stiffness, or weakness, but these are secondary to the primary complaint of pain. Understanding that pain is the hallmark symptom can help guide both diagnosis and treatment strategies for individuals experiencing tendonitis.