Osteoporosis is a condition that has virtually no symptoms until severe bone damage has already occurred. Once the bones have been weakened by bone density loss, symptoms may include: 1  Back pain.2  Loss of height over time with stooped posture. 3  Fractures of the vertebrae, wrists, hips or other bones.ithout treatment, a person with osteoporosis is likely to have fractures, most often in the spine or hips (which support the body's weight) or in the wrists from bracing against a fall. Fractures of the spine can happen even without a fall or an injury. The bones of the spine become so weak that they start to compress.