HHS – Reducing the Risk of Bone Fracture: A Review of the Research for Adults With Low Bone Density. “Yes, this information is right for you if – Your doctor has said you have low bone density. People with low bone density have one of two conditions:

• Osteopenia: mild low bone density
• Osteoporosis: severe low bone density
• Your doctor has said you may have a higher risk of breaking a bone because of your low bone density.
• You have broken a bone by falling while standing.
• Your doctor has suggested medicines to lower your risk of breaking a bone.”