What should you know about femoral osteomyelitis?

Infection can reach the femur through the bloodstream, nearby tissues, an open injury, or a surgical site. It may affect bone and surrounding soft tissue, and symptoms can include deep pain, warmth, swelling, fever, fatigue, or drainage from a wound. Some cases develop gradually, so the absence of fever does not rule it out.

Assessment may include an examination, blood tests, imaging, and sometimes a sample from the affected area. These steps help distinguish infection from other causes of thigh pain and help select treatment.

Treatment is directed by an orthopaedic or infectious-disease team and may include antibiotics, wound care, drainage, or surgery to remove infected or dead tissue. Take prescribed medicine exactly as directed and attend reviews even if pain improves. Protect the leg according to the mobility plan and report new drainage or reduced movement.

When infection has damaged bone or left a gap after surgical cleaning, [Bone Grafting](/treatments/trauma-and-fracture-care/bone-grafting/) may be discussed as part of reconstruction. The choice depends on the infection, bone stability, and tissue condition.

Seek urgent medical care for fever with rapidly worsening thigh pain, spreading redness, confusion, faintness, severe weakness, or pus from a wound. After surgery or an open fracture, a change in wound drainage, increasing swelling, or new difficulty bearing weight warrants prompt contact with the treating team.

Ask: Where might the infection have started? Do I need imaging or a tissue sample? Which antibiotic plan is intended? Is the bone stable? What signs suggest the infection is returning?