Internal and external factors leading to frozen shoulder

Internal and external factors leading to frozen shoulder

There are many causes of scapulohumeral periarthritis, mainly including two pathogenic factors: external factors and internal factors.

1. Internal factors

It is mainly due to insufficient Qi and blood. This disease mainly occurs in middle-aged and elderly people aged 40 to 50. People in this age group tend to be weak, with insufficient liver and kidney essence, insufficient tendons, and blood deficiency, which mainly causes pain. Over time, the tendons and pulses are very tense, and then the blood circulation slows down, and Qi and blood are suspected to be prone to forming frozen shoulder.

2. External factors

External factors have a great influence on the occurrence and development of frozen shoulder.

1Acute injury and chronic strain

This disease mainly occurs in middle-aged and elderly people over 40 years old. Due to the structural characteristics of the shoulder joint, it has strong flexibility and poor stability. When there is a sudden external injury, the tissues around the shoulder joint are more vulnerable to damage. The ligaments and muscles will be partially torn. Body fluids often seep under the skin of the damaged part and swell locally. If it is not treated in time during this period. If the excess body fluids are not removed in time, calcium salt deposition will form locally. The surrounding soft tissues will become stiff and the local blood circulation will be affected. Many small granulation tissues will form at the injured part of the soft tissue, promoting the adhesion of the soft tissue and forming this disease.

2. The influence of wind, cold and dampness

As the seasons change, the shoulder joint will be affected by wind, cold, humidity and other factors, which will lead to blockage of meridians around the shoulder joint, insufficient qi and blood, and muscle stiffness and adhesion. Limited or loss of function will cause this disease.

3 Other factors

Traumatic fractures of the clavicle or humerus. If the reduction and fixation time is too long, the shoulder joint cannot be exercised for a long time, the tendons are not nourished, and the qi and blood are blocked, which can also cause periarthritis of the shoulder.

Some organs adjacent to the shoulder joint will also affect the surrounding blood circulation, leading to aseptic inflammation of soft tissues. Muscles and ligaments become stiff, the range of motion of the shoulder joint gradually decreases, and eventually soft tissue adhesions occur, forming frozen shoulder.