Frozen shoulder is also known as shoulder capsulitis, and many people choose the method of frozen shoulder acupuncture to relieve it. It is a disease characterized by insidious onset. The range of motion decreases slowly and gradually over time without intervention. Pain and stiffness of the shoulder joint are the main manifestations of the disease. Scar tissue can form and the fluid that lubricates the joint is affected, reducing the shoulder's range of motion.