Frozen Shoulder, or adhesive capsulitis, is a painful and debilitating condition marked by progressive stiffness, discomfort, and restricted range of motion in the shoulder joint. It occurs when the capsule surrounding the joint thickens, becomes inflamed, and tightens, leading to a significant loss of flexibility and mobility. The condition typically develops gradually and progresses through three distinct stages—freezing (pain and increasing stiffness), frozen (severe restriction of movement), and thawing (gradual improvement in mobility). Frozen shoulder can persist for months or even years, often impacting daily activities such as lifting, reaching, or dressing.