What is the normal value of bone mineral density

summary

With the improvement of living standards, there are more and more elderly people. Generally speaking, as they get older, their BMD will change. Therefore, many people want to know the normal value of BMD. I believe you will know after reading the following.

What is the normal value of bone mineral density

First, the full name of BMD is bone mineral density, which is an important indicator of bone strength. It is expressed in gram per square centimeter, which is an absolute value. When using BMD value, because the absolute value of different BMD detectors is different, t value is usually used to judge whether the BMD is normal. T value is a relative value, and the normal reference value is between - 1 and + 1. When t value is lower than - 2.5, it is abnormal.

Second, generally speaking, the normal value of BMD is 100%. Of course, if it is reduced by 1% - 12%, it is basically normal, so there is no need to worry about it.

Third, t value is usually given after BMD examination, which means the change of BMD of subjects compared with the peak BMD of normal people (that is, the BMD of healthy young people), specifically expressed as t value = (measured value - BMD) / standard deviation of BMD of normal adults.

matters needing attention

People to a certain age, it is necessary to regularly go to the hospital to check the bone mineral density value, find the situation, timely treatment, so as not to affect our health problems.