Comparison of some major forms of arthritis

	Osteoarthritis	Rheumatoid arthritis	Gouty arthritis
Speed of onset	Months	Weeks-months[22]	Hours for an attack[23]
Main locations	Weight-bearing joints (such as knees, hips, vertebral column) and hands	Hands (proximal interphalangeal and metacarpophalangeal joint) wrists,ankles, knees and hips	Great toe, ankles, kneesand elbows
Inflammation	May occur, though often mild compared to inflammation in rheumatoid arthritis	Yes	Yes
Radiologicchanges	Narrowed joint space Osteophytes Local osteosclerosis Subchondral cysts	Narrowed joint space Bone erosions	"Punched out" bone erosions
Laboratory findings	None	Anemia, elevated ESR and C-reactive protein (CRP), rheumatoid factor,anti-citrullinated protein antibody	Crystal in joints
Other features	No systemic signs Bouchard's and Heberden's nodes	Extra-articular features are common Ulnar deviation, swan neck- and Boutonniere deformity of the hand	Tophi Nephrolithiasis