Most people have aches and pains that come and go. Pain behind the shoulder blade (the bone known as the scapula) is quite common, but can be debilitating. There are a number of possible causes, so a careful physical examination and detailed information from each individual patient is vital for me to be able to make the correct diagnosis. A crunching sensation and sometimes an audible noise (aka crepitus) is often present in a diagnosis of snapping scapula, also known as scapulothoracic bursitis with crepitus.