<unk>  is an infection of bone or bone marrow, usually caused by pyogenic bacteria or mycobacteria. It can be subclassified on the basis of the causative organism, the route, duration and anatomic location of the infection.
Osteomyelitis
Synarthrosis
Osteochondrosis
Pseudarthrosis
Osteopetrosis
Osteochondritis
Osteolysis
Osteoma