infectious arthritis (septic arthritis) is caused by a bacterial, viral, or fungal infection inside a joint. the infection may be caused by an illness or may spread from an infection in a wound near a joint.
the large joints, such as the hips, knees, shoulders, and elbows, are most often affected. infectious arthritis usually affects one joint, but it can affect many joints. symptoms may include:
- severe pain with the slightest joint motion or pressure on the joint.
- fever and chills.
- general weakness and headache.
- painful, red, swollen, and stiff joint.
- red streaks near the joint.
- swollen lymph nodes.
immediate treatment with antibiotics and, possibly, surgical drainage of the affected joint can prevent the spread of the infection, the destruction of the joint, and even death.