Osteoporosis often has no symptoms. Quite often the first sign that you may have it is when you break a bone in a relatively minor fall or accident (known as a low-impact fracture). Fractures are most likely to happen at the hip, spine or wrist.
Other signs you should watch out for include:
Loss of height (getting shorter by an inch or more).
Change in posture (stooping or bending forward).
Shortness of breath (smaller lung capacity due to compressed disks).
Bone fractures.
Pain in the lower back.