Osteoporosis is a condition where the normal bone density decline, causing the bone to become fragile.

It contribute to a porous bone state making the bone like a span and fragile from the inside. The problem that happens to the bone make it weaken and causing the risk of fractured bone or crack.

Normal bones contain protein, callogen and calcium which make them strong. Bones that have osteoporosis could crack even by a light injury which normally does not cause bone fracture.