Bone density tests are usually harmless.
There are two types of bone density tests, one of which utilizes ultrasound, which is generally non-radioactive to the body and does not cause significant side effects.
The other way is to use X-ray examination method, X-ray has a certain radiation effect on the human body, but only one such bone density examination, radiation is small, the human body will absorb a period of time will be eliminated by itself, will not cause damage to adults, but for children, we do not recommend that you choose to choose the way of X-ray examination to check the bone density, you can choose to choose the ultrasound.