The socio-economic importance of osteoporosis is in the increase. The costs of the effects of reduced working capability and treatment of fractures are estimated costs only. The authors report on 146 osteoporotic patients between 1986-89, suffering from fractures. Among the patients there is a female dominance. The number of osteoporotic fractures is in the increase in the recent years. The authors pointed out the importance of early diagnosis and prevention, to solve the great social problems caused by morbidity, reduced working capability and lower life standard.