In the process of sleeping on your side, it does tend to lead to wind and cold in the shoulder, thus inducing frozen shoulder, but it is not assumed that sleeping on your side can lead to frozen shoulder. Frozen shoulder is formed by a variety of compound factors, in addition to the induced by wind and cold, the basis is because there is age, day-to-day strain and strain. And most of them are in middle-aged and elderly people around 50 years old, if they are young, at most they will have lesions such as myofasciitis, muscle strain and muscle spasm around the shoulder joint. Therefore, at the age of about 50, the main thing is to pay attention to the warmth of the inter-articular joint, and sleeping on your side in this state is just more likely to induce frozen shoulder, which does not indicate that it will lead to the appearance of frozen shoulder disease, but are two different concepts altogether, and need to make a good distinction.