Inherited | Nutritional | Endocrine | Drugs | Other |
---|---|---|---|---|
Osteogenesis imperfecta | Malabsorption | Hypogonadism | Glucocorticoids | Multiple myeloma |
Homocystinuria | Chronic liver disease | Hyperthyroidism | Anticonvulsants | Rheumatoid arthritis |
Marfan's syndrome | Alcoholism | Hyperparathyroidism | Long-term heparin | Systemic mastocytosis |
Hypophosphatasia | Calcium deficient diet | Cushing's syndrome | Excess thyroid | Immobilization |
 | Vitamin D deficiency | Eating disorder | GnRH agonists |  |