A list of common and relatively rare bone diseases and disorders is presented online at the National Center for Biotechnology Information of the United States National Library of Medicine. The most commonly occurring among these conditions include osteoporosis, fractures, Paget's disease, osteogenesis imperfecta, sclerosis, bone tumors and oral bone diseases.
People develop bone diseases and disorders due to a variety of reasons. These often include genetic factors, disruptions in mineral metabolic functions or the onset of degenerative bone problems that are commonly associated with the aging process.
An online index of common diseases and disorders that affects not only the bones but also the muscles in the body is available at Johns Hopkins Medicine. A comprehensive list of known bone conditions is also featured at Right Diagnosis.