Shoulder pain and weakness may be caused by frozen shoulder, which can also be caused by long-term cervical spondylosis or after being exposed to wind-cold. Frozen shoulder refers to the inflammatory reaction around the shoulder joint, which affects the shoulder joint capsule and the surrounding ligaments and other tissues, resulting in chronic specific inflammation. Because of the presence of local inflammatory reaction, the exudation of various inflammatory factors can lead to local adhesions, thus causing pain around the shoulder joint as well as symptoms of unchanged movement, mainly manifested as soreness and weakness, often affected by climate change. After suffering from cervical spondylosis, the protruding cervical vertebrae compresses the vertebral artery or the surrounding nerve roots, which will lead to nerve damage, thus causing abnormal local sensations, and similar symptoms will appear after being injured by external forces or inflammatory reactions, which need to be clinically and timely differentiated and diagnosed.