There are more than 100 types of arthritis and related conditions.

More than 100 forms of arthritis and related diseases exist affecting approximately 70 million Americans today. A complete listing follows:

Achilles tendinitis Achondroplasia Acromegalic arthropathy Adhesive capsulitis Adult onset Still's disease Ankylosing spondylitis Anserine bursitis Avascular necrosis Behcet's syndrome Bicipital tendinitis Blount's disease Brucellar spondylitis Bursitis Calcaneal bursitis Calcium pyrophosphate dihydrate (CPPD) Crystal deposition disease Caplan's syndrome Carpal tunnel syndrome Chondrocalcinosis Chondromalacia patellae Chronic synovitis Chronic recurrent multifocal osteomyelitis Churg-Strauss syndrome Cogan's syndrome Corticosteroid-induced osteoporosis Costosternal syndrome CREST syndrome Cryoglobulinemia Degenerative joint disease Dermatomyositis Diabetic finger sclerosis Diffuse idiopathic skeletal hyperostosis (DISH) Discitis Discoid lupus erythematosus Drug-induced lupus Duchenne's muscular dystrophy Dupuytren's contracture Ehlers-Danlos syndrome Enteropathic arthritis Epicondylitis Erosive inflammatory osteoarthritis Exercise-induced compartment syndrome Fabry's disease Familial Mediterranean fever Farber's lipogranulomatosis Felty's syndrome Fibromyalgia Fifth's disease Flat feet Foreign body synovitis Freiberg's disease Fungal arthritis Gaucher's disease Giant cell arteritis Gonococcal arthritis Goodpasture's syndrome Gout Granulomatous arteritis Hemarthrosis hemochromatosis Henoch-Schonlein purpura Hepatitis B surface antigen disease Hip dysplasia Hurler syndrome Hypermobility syndrome Hypersensitivity vasculitis Hypertrophic osteoarthropathy Immune complex disease Impingement syndrome Jaccoud's arthropathy Juvenile ankylosing spondylitis Juvenile dermatomyositis Juvenile rheumatoid arthritis Kawasaki disease Kienbock's disease Legg-Calve-Perthes disease Lesch-Nyhan syndrome Linear scleroderma Lipoid dermatoarthritis Lofgren's syndrome Lyme disease Malignant synovioma Marfan's syndrome Medial plica syndrome Metastatic carcinomatous arthritis

Mixed connective tissue disease (MCTD) Mixed cryoglobulinemia Mucopolysaccharidosis Multicentric reticulohistiocytosis Multiple epiphyseal dysplasia Mycoplasmal arthritis Myofascial pain syndrome Neonatal lupus Neuropathic arthropathy Nodular panniculitis Ochronosis Olecranon bursitis Osgood-Schlatter's disease Osteoarthritis Osteochondromatosis Osteogenesis imperfecta Osteomalacia Osteomyelitis Osteonecrosis Osteoporosis Overlap syndrome Pachydermoperiostosis Paget's disease of bone Palindromic rheumatism Patellofemoral pain syndrome Pellegrini-Stieda syndrome Pigmented villonodular synovitis Piriformis syndrome Plantar fasciitis Polyarteritis nodosa Polymyalgia rheumatica Polymyositis Popliteal cysts Posterior tibial tendinitis Pott's disease Prepatellar bursitis Prosthetic joint infection Pseudoxanthoma elasticum Psoriatic arthritis Raynaud's phenomenon Reactive arthritis/Reiter's syndrome Reflex sympathetic dystrophy syndrome Relapsing polychondritis Retrocalcaneal bursitis Rheumatic fever Rheumatoid arthritis Rheumatoid vasculitis Rotator cuff tendinitis Sacroiliitis Salmonella osteomyelitis Sarcoidosis Saturnine gout Scheuermann's osteochondritis Scleroderma Septic arthritis Seronegative arthritis Shigella arthritis Shoulder-hand syndrome Sickle cell arthropathy Sjogren's syndrome Slipped capital femoral epiphysis Spinal stenosis Spondylolysis Staphylococcus arthritis Stickler syndrome Subacute cutaneous lupus Sweet's syndrome Sydenham's chorea Syphilitic arthritis Systemic lupus erythematosus (SLE) Takayasu's arteritis Tarsal tunnel syndrome Tennis elbow Tietse's syndrome Transient osteoporosis Traumatic arthritis Trochanteric bursitis Tuberculosis arthritis Arthritis of Ulcerative colitis Undifferentiated connective tissue syndrome (UCTS) Urticarial vasculitis Viral arthritis Wegener's granulomatosis Whipple's disease Wilson's disease Yersinial arthritis