Frozen shoulder or adhesive capsulitis is a painful condition of the shoulder. The distinctive symptoms of the condition are the combination of severe pain, especially at night or at rest, along with a marked stiffness of the shoulder with loss of rotational movement, such as placing a hand behind your back.
The condition goes through three phases, known as the freezing, frozen and thawing phases. Each phase typically lasts between six and nine months but sometimes this time frame is extended.
The condition is more common in diabetics who can have it in both shoulders and it also takes them a lot longer to recover.