Joint infection, also known as septic arthritis, is a serious medical condition characterized by the invasion of a joint space by bacteria, viruses, or fungi, leading to inflammation, pain, swelling, and restricted movement. It most commonly affects large joints such as the knee, hip, or shoulder and can develop rapidly, often requiring urgent medical attention. The infection can result from direct trauma, surgical procedures, or spread from another site in the body through the bloodstream. Early diagnosis through clinical examination, blood tests, and joint fluid analysis is crucial. Treatment typically involves antibiotics or antifungal medications, and in some cases, surgical drainage may be necessary to prevent permanent joint damage and restore mobility.
