Early in the course of the disease, osteoporosis may cause no symptoms. Later, it may cause dull pain in the bones or muscles, particularly low back pain or neck pain.
Later in the course of the disease, sharp pains may come on suddenly. It may not radiate; it may be made worse by activity that puts weight on the area, may be tender, and generally begins to subside in 1 week. Pain may linger more than 3 months.
People with causes of osteoporosis may not even recall a fall or other trauma that might cause a broken bone, such as in the spine. Spinal compression fractures may result in loss of height with a stooped posture (called a dowager’s hump).
Fractures at other sites, commonly the hip or bones of the wrist, usually result from a fall.
Sources emedicinehealt.com