Arthritis Osteoarthritis HP:0002824 Degenerative joint disease MSH:D010003 HP:0001379 骨关节炎 HP:0002758 Degeneration (wear and tear) of articular cartilage, i.e., of the joint surface. Joint degeneration may be accompanied by osteophytes (bone overgrowth), narrowing of the joint space, regions of sclerosis at the joint surface, or joint deformity. UMLS:C0029408 SNOMEDCT_US:225655006 human_phenotype HP:0005762 SNOMEDCT_US:396275006