Frozen shoulder occurs when the connective tissue enclosing the joint becomes thickened and tight. Frozen shoulder, also known as adhesive capsulitis, is a condition characterized by stiffness and pain in your shoulder joint.

当包围关节的结缔组织变厚变紧时，就会发生肩周炎。 冻结肩，也称为粘连性关节囊炎，是一种以肩关节僵硬和疼痛为特征的疾病。