The patient is suffering from periarthritis of the shoulder, which is a type of aseptic inflammation. In the early stages, the primary symptom is a subjective feeling of pain in the shoulder, which tends to worsen at night. The skin and muscle tissues around the shoulder become adhesive and hardened, and touching the area can distinctly feel stiffness and hardening. At the same time, the range of motion in the shoulder joint decreases, and moving the joint can intensify the pain. Diagnostic clarity can be achieved through MRI scans and ultrasound examinations. In the early stages, topical plasters that reduce swelling and relieve pain can be used, along with acupuncture and moxibustion, and the application of analgesic medications. It is also necessary to strengthen shoulder joint function training under the guidance of a rehabilitation physician. Pendulum movements of the shoulder joint and arc movements can help alleviate pain and increase the range of motion of the shoulder joint.