<unk>  is the one of the most serious medical emergency of a patient present with one or more hot and swollen joints. It is the most rapidly destructive joint disease. It is most common in patients with longstanding rheumatoid arthritis and it is a an important consideration in adults presenting with monoarticular arthritis in 80 to 90% of patients. It can involve any joint, but most commonly involves knee > hip > shoulder > ankle. Other joints such as<unk> croiliac joint, sternoclacicular or costoclavicular joints may be involved in patient with history of intravenous drug abuse (IVDA), penetrating trauma, animal or human bites and local steroid injections.<unk>  is joint inflammation secondary to an infectious etiology, usually bacterial, but occasionally fungal, mycobacterial, viral, or other uncommon pathogens.<unk>  is usually monoarticular involving one large joint such as the hip or knee; however, polyarticular<unk>  involving multiple or smaller joints may also occur. Though uncommon,<unk>  is an orthopedic emergency that can cause significant joint damage leading to increased morbidity and mortality.
Septic arthritis
Bursitis
Reactive arthritis
Crystal arthritis
Psoriatic arthritis
Rheumatoid arthritis
Osteochondritis
Oligoarthritis