Osteoporosis is a bone-weakening disease.
Bones that were once strong become weak, brittle, and prone to fracture. Osteoporosis may result in fractures of the spine, wrists, hips, and other bones. Bone loss may lead to small breaks in the spine. As more small breaks occur, people get shorter. Some people are unaware of this happening and may only notice that their clothes don't fit quite the same way.