The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The
https://
ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Learn about osteoporosis—a disease that weakens bones—including risk factors, early signs and osteopenia, bone density testing, treatment, and prevention.