Crepitus (the sound of crunching):
Patients with shoulder arthritis commonly experience crepitus in the shoulders. The disease affects the cartilage and bone in your shoulders, which serve to prevent other structures from pressing against each other. Crepitus is one of the most prominent symptoms of articular cartilage degeneration. Inflammation or degeneration of the cartilage that binds your shoulder joint together is typically the cause.
Crepitus produces a grinding sound when the shoulder is moved, and it is frequently accompanied by a burning sensation and discomfort. Occasionally, it is extremely loud, but other times, it is only felt or heard by you or when others rest their hands on your shoulder while you move your arms.
Crepitus does not necessarily indicate a shoulder joint condition. Numerous other structures surrounding the joint can occasionally produce a similar cracking sound. Therefore, if this problem persists and is accompanied by shoulder pain, you should likely consult a physician to rule out shoulder arthritis and other chronic shoulder conditions.
