Osteomyelitis

Osteomyelitis is an infection within the bone itself. It develops when bacteria reach the bone tissue, often through a wound that penetrates deeply, through the bloodstream from an infection elsewhere in the body, or following surgery. The infection triggers inflammation inside the bone, which can interfere with healing and, over time, with the bone's structure. Owners often notice persistent pain in a limb, reluctance to bear weight, or swelling that does not resolve as expected after an injury or procedure. In some cases, there may be a wound that continues to drain or fails to heal. The signs can develop over days to weeks, and the affected area may feel warm or appear tender when touched. This page explores the patterns that can raise concern for osteomyelitis, what is happening within the bone and surrounding tissue, how the condition is investigated through imaging and laboratory work, and the range of approaches that may be considered in managing it.