difference between primary and secondary osteoporosis
Types of Osteoporosis. Osteoporosis may be either a primary or a secondary form. Primary osteoporosis is the more common form and is due to the typical age-related loss of bone from skeleton. It is classified as type 1 and type 2. Secondary osteoporosis results from the presence of other diseases or conditions that predispose to bone loss and is classified as type 3.