A digital X-ray of the left arm is a painless procedure to visualize the anatomy of the arm that includes the shoulder joint, elbow, bones of the upper arm and forearm, the wrist, and the surrounding soft tissues. It is done to diagnose any bone fractures, to check the healing of the broken bone after it has been set, to detect any infections, or deformities, to diagnose suspected arthritis or dislocation of the joints, and more.