Periarthritis of the shoulder refers to a sterile inflammation caused by chronic strain on the muscles, ligaments, or joint capsule around the shoulder joint, characterized by localized pain and limited mobility of the shoulder joint. For those experiencing periarthritis of the shoulder, it is advised to undergo physical therapy and rest, keep the area warm, avoid cold exposure, and engage in appropriate functional exercises to prevent joint stiffness due to the pain and limited mobility in the shoulder joint. Thus, with systematic treatment, this type of sterile inflammation in the shoulder joint can generally be alleviated.