Bone infection, medically known as osteomyelitis, is a serious condition that occurs when bacteria or fungi invade the bone tissue, typically through the bloodstream, open fractures, or surgical procedures. It can lead to inflammation, pain, swelling, fever, and reduced mobility in the affected area. If left untreated, the infection can cause permanent bone damage, impaired growth in children, or even spread to other parts of the body. Diagnosis often involves blood tests, imaging studies, and sometimes a bone biopsy. Treatment typically includes antibiotics or antifungal medications, and in severe cases, surgical removal of the infected tissue may be necessary. Early detection and prompt medical intervention are essential to prevent complications and promote full recovery.