Septic arthritis is an infection in a joint. The infection can be caused by bacteria, viruses, fungi, or parasites. Joint infection caused by fungi (fungal arthritis) or parasites is much less common than that caused by bacteria or viruses (viral arthritis). Typically, septic arthritis affects a single large joint, such as the knee or hip, but it is possible for several joints to be infected.

Septic arthritis, also referred to as infectious arthritis, is considered a medical emergency because of the serious damage that can occur to bone and cartilage. Septic arthritis can also cause septic shock, which can be fatal. Learn more about septic arthritis causes, symptoms, diagnosis, treatment, risk factors, and prevalence in Septic Arthritis - Fast Facts.

Related Resources:

• Gonococcal Arthritis
• Joint Fluid Analysis
• What Is Joint Effusion?
• More About Septic / Infectious Arthritis

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