The hand joints most commonly involved by the degenerative process are, in decreasing order of frequency, the distal interphalangeal joints, the trapezo-metacarpal joint, the metacarpo-phalangeal joint of the thumb, the carpal metacarpal joint of the second and third fingers, the metacarpo-phalangeal joints and the proximal interphalangeal joints. Erosive osteoarthrosis can be confused with arthropathy associated with psoriasis. Degenerative joint disease of the hand is more common in women. Even though some authors have suggested a genetical origin, the most commonly accepted etiology is recurrent microtrauma of the pinching mechanism. Treatment consists of anti-inflammatory drugs during episodes of acute pain, and physiotherapy. Surgery is rarely indicated.