Histological findings in synovial fluid can provide crucial information about the underlying joint condition. For instance, the presence of monosodium urate crystals is indicative of gout, while calcium pyrophosphate crystals suggest pseudogout. A high white blood cell count may indicate an inflammatory or infectious process, such as rheumatoid arthritis or septic arthritis. The presence of bacteria in the fluid, identified through Gram staining, confirms septic arthritis.
