<prompt> Answer this question truthfullyCan you provide a summary of Septic arthritis?  <response>: <reason> Patient present with septic arthritis should be differentiate from other causes of acute monoarticular arthritis.Differential diagnosis of acute monoarticular arthritis Infectious Crystal induced Hemorrhagic Systemic rheumatological disorders Intra-articular derangement Bacterial arthritis Fungal arthritis Mycobacterial arthritis Viral arthritis Lyme arthritis Gouty arthritis Urate crystals Pseudogout Calcium pyrophosphate dihydrate Calcium oxalate crystals Clotting disorders e.g. Hemophilia Anti-coagulation therapy Fracture Rheumatoid arthritis Spondyloarthritis Systemic lupus erythematosus Meniscal tear Fracture Osteonecrosis 