Septic arthritis, also known as infectious arthritis, is a condition where a joint becomes infected with bacteria, viruses, or fungi, causing inflammation, pain, and stiffness. It is important to know the synonyms for septic arthritis as it can help in better medical communication and diagnosis. Some of the common synonyms include bacterial arthritis, pyogenic arthritis, suppurative arthritis, purulent arthritis, and septic joint inflammation. Other terms used to refer to septic arthritis include infective arthritis and septic synovitis. These terms are often used by medical professionals to describe the condition and may be helpful for patients to understand their diagnosis and treatment options.