What is a frozen shoulder and what causes it?
A ‘frozen shoulder’ is normally when the capsule tissue around the shoulder joint becomes bound down, limiting the movement of the shoulder. The most common cause is irritation to either tendons around the shoulder or a bursa which lies above the shoulder joint itself. The irritation causes pain and the individual stops using the shoulder. This causes the shoulder capsule to become bound down. Shoulder pain from either the neck, or in occasional cases, from heart conditions, also leads the individual to believe the shoulder is injured and a frozen shoulder occurs.