Does osteoporosis target only the damaged areas of bone or does it build up in the good areas too and cause too much bone?

Affects everywhere: Osteoporosis is loss of skeletal bone. Although we typically measure changes in the spine, hip, and sometimes wrist, it is a process that effects every bone in the body. There are two major types of bone: trabecular (bone on the inside) and cortical (bone on the outside). The spine has mostly trabecular bone, the hip has both, and the wrist mostly cortical.