There is a much higher risk of osteoporosis after menopause in women. The risk increases if you happen to be effected by early natural menopause in which the menstrual periods stop at an earlier age than the average age of 45 to 55, or if you have had both ovaries removed by surgery.
Ovaries are the organs that produce one of the female hormones, estrogen. the female hormones system, especially estrogen, is important in bone formation. At menopause, the ovaries produce less estrogen so the amount of estrogen in the body decreases.
Although the process is not very well understood, lower estrogen levels in some way cause less bone formation, increase the amount of bone lost, with result that the bones gradually become thinner. If menopause happens earlier in life, it may allow osteoporosis to begin earlier.
Why some women reach menopause earlier than others is not known.It is know, however, that such women are at greater risk of developing osteoporosis. If the ovaries are removed surgically, the source of estrogen is also removed. One common operation in which the ovaries are sometimes removed is a hysterectomy.
The reasons for ovary removal are varied; when people, however, most surgeons try to leave one ovary in place to allow estrogen hormone production to continue as long as possible. In that situation, the decrease in estrogen level would probably be between ages 45-55
The problem crucial to women and osteoporosis is that once the lower levels of estrogen cause osteoporosis and bone is lost, the body is quite limited in its ability to actually replace the lost bone. Therefore, the risk factor, which is the major factor in osteoporosis in most women, must be detected early so that any possible treatment might be started as soon after menopause as possible.