Diagnostic arthroscopy is a minimally invasive procedure used to examine, diagnose, and sometimes treat problems inside a joint. By inserting a small camera called an arthroscope into the joint, surgeons can visualize structures such as cartilage, ligaments, and tendons with precision. This technique helps detect joint injuries, inflammation, or degenerative conditions while minimizing recovery time compared to traditional open surgery. It is commonly used for knees, shoulders, hips, and other joints.