What are the signs and symptoms of frozen shoulder?

What are the signs and symptoms of frozen shoulder?

Symptoms of frozen shoulder are divided into three stages:

• The "freezing" stage:
  In this stage, the shoulder becomes stiff and is painful to move. The pain slowly increases. It may worsen at night. Inability to move the shoulder increases. This stage lasts 6 weeks to 9 months.
• The "frozen" stage:
  In this stage, pain may lessen, but the shoulder remains stiff. This makes it more difficult to complete daily tasks and activities. This stage lasts 2 to 6 months.
• The "thawing" (recovery) stage:
  In this stage, pain lessens, and ability to move the shoulder slowly improves. Full or near full recovery occurs as normal strength and motion return. The stage lasts 6 months to 2 years.