Osteomyelitis and Staphylococcus aureus

Osteomyelitis is an infection inside bone. Staphylococcus aureus, also called staph, can reach bone through the bloodstream, an open injury, a nearby wound, or an operation. The infection may affect a limb, the spine, or another bone. Pain, warmth, swelling, reduced movement, fever, or drainage from a wound can occur, although symptoms vary and a long-standing infection may be less dramatic.

A clinician may combine an examination with blood tests and imaging. A sample from blood, wound drainage, or bone can help identify the germ and guide antibiotic choice. A positive staph result does not by itself show how deep the infection is; the surrounding tissues and bone must also be assessed.

Arrange prompt medical review if bone infection is suspected, particularly after surgery, a deep wound, or a recent bloodstream infection. Take prescribed antibiotics exactly as directed and report rash, severe diarrhoea, or other concerning reactions. Keep any wound clean according to the care plan, and do not squeeze drainage or stop treatment because pain improves.

Some people need drainage of an abscess, removal of infected or dead bone, or repair of damaged tissue. If bone loss remains after infection is controlled, a surgeon may discuss [Bone Grafting](/treatments/trauma-and-fracture-care/bone-grafting/).

Seek urgent care for rapidly increasing pain or swelling, spreading redness, pus, a high fever, shaking chills, confusion, faintness, or difficulty moving the affected limb. New weakness, numbness, or severe back pain with fever needs immediate assessment because infection near the spine can threaten nerves.

Ask which sample identified Staphylococcus aureus, whether the infection involves bone or nearby tissue, how long treatment is expected to continue, and what symptoms should trigger a same-day review.