What should you know about localized osteomyelitis?

Osteomyelitis can develop when germs reach bone through the bloodstream, a nearby wound, surgery, or an open injury. Localized disease may cause pain, tenderness, warmth, swelling, or reduced movement around one site. Fever may occur, but its absence does not exclude infection.

Assessment can include an examination, blood tests, and imaging. In some situations, a sample from the affected area helps identify the germ and guide treatment. The infection may involve bone near a joint or an implant, which can change the treatment plan.

Follow the treatment plan closely and finish prescribed antimicrobial medicine unless the treating clinician changes it. Keep any wound clean as instructed, protect the area from unnecessary pressure, and attend planned reviews even when pain improves. Do not self-treat persistent bone pain with repeated painkillers alone.

Some people need drainage of infected fluid, removal of unhealthy tissue, or repair of damaged bone. [Bone Grafting](/treatments/trauma-and-fracture-care/bone-grafting/) may be considered when infection or surgery has left a bone defect, but the timing depends on infection control and healing.

Seek urgent care for rapidly increasing pain or swelling, spreading redness, pus, high fever, shaking chills, confusion, faintness, or feeling severely unwell. Prompt assessment is also needed for a wound over bone that is not healing, new inability to use a limb, or pain after surgery that is worsening rather than settling.

Which tests will show whether bone is infected? Do I need a sample to guide treatment, how long might treatment continue, and what signs suggest the infection is returning? If bone has been damaged, when would reconstruction be considered?