Genetic factors may predispose some men towards developing osteoporosis, researchers say.
Osteoporosis is not only a women's problem. Around one to two million men in the US also have the condition. In fact men over 50 are at more risk of an osteoporosis-linked fracture than they are of prostate cancer.

Researchers at the Maine Center for Osteoporosis Research and Education point out that the causes of male osteoporosis are not well understood. Genetic factors may be involved and a 'marker' protein called IGF-profactor-1 is being studied. At present it is just not practical to screen all men for low bone density. But men over 55 who have lost one or more inches in height should be tested, as should those sustaining fractures. Other risk factors include having a father or mother with osteoporosis, having a history of kidney stones and taking glucocorticoids, for conditions like asthma, Crohn's disease or rheumatoid arthritis.