Frozen shoulder, or adhesive capsulitis, is a common condition characterized by a stiffness in one or both shoulders, which reduces the mobility, as well as persistent pain in the upper shoulder joint.
This condition usually affects people aged between 40 and 60, and about 3% of the population. If you suffer from this condition, you should seek medical attention to treat it and prevent additional complications.
The pain and stiffness in the shoulder gradually develop over time, and their cause is not fully understood. The symptoms are divided into three stages, worsen gradually, and usually resolve within a few years.
These are the stages:
Freezing, or painful stage: The stage lasts for 6-9 months, and the pain increases gradually
Frozen: At this stage, which lasts for 4-6 months, the pain does not increase, but the shoulder remains stiff
Thawing: This stage lasts for 1-2 years, and the pain gradually fades.
In most cases, the main reason is the formation of scar tissue in the shoulder, which thickens and tightens the capsule of the joint, and the movement is reduced and leads to pain. Moreover, the immobility and stiffness might also be caused by a fracture or injuries.
When it comes to the risk factors, women older than 40 and diabetics are at an increased risk. Namely, 70percent of the people suffering from this issue are women. Furthermore, a frozen shoulder might be a result of surgery or an arm fracture.