Prednisone and bone loss
Also called: prednisone, steroids and bones
What it means
Prednisone and bone loss refers to the weakening of bone that can happen when corticosteroid medications like prednisone are taken for a long time, a condition doctors call glucocorticoid-induced osteoporosis.
Long-term prednisone use is one of the most common and well-documented causes of medication-related osteoporosis, so it matters even if you don't have other risk factors.
Prednisone is a corticosteroid, a medication often prescribed for inflammation, autoimmune conditions, asthma, or allergic reactions. It's closely related to cortisol, the body's natural stress hormone. While it's very effective at calming inflammation, taking it for extended periods comes at a cost to your skeleton, which is why doctors call this effect glucocorticoid-induced osteoporosis.
Prednisone weakens bone in several ways at once. It slows down the bone-building cells (osteoblasts), speeds up the bone-removing cells (osteoclasts), reduces how much calcium your gut absorbs from food, and causes your kidneys to lose more calcium through urine. Bone loss can start within the first few months of taking it, and the effect tends to be related to the dose and how long it's used.
Because this type of bone loss is common and well understood, doctors generally recommend checking fracture risk for anyone expected to take steroids for three months or longer. This usually includes a bone density scan and sometimes blood or urine tests. If you're on long-term prednisone, your prescriber may discuss calcium, vitamin D, or bone-protective medication with you — but any changes to your steroid dose or added treatments should always be decided with your doctor, not on your own.
How sure is this?
Graded Established Science: Supported by broad scientific consensus and decades of research. Read each study with its grade in mind. One study is a piece of the picture, not the whole of it.
Long-term prednisone use is a common, well-documented cause of bone loss even without other risk factors.
Where this leads
WordWant to see the bigger picture of medication-related bone loss? This covers other causes beyond steroids worth knowing about.
Where the Academy teaches it
This page is the short version. The lessons teach it in full, with the context around it and a quiz to lock it in.
Related words
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Cushing's syndrome is a condition caused by too much cortisol in the body, which can seriously weaken bones over time.
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Education only, not medical advice. Decisions about tests, medications and treatment belong with your own doctor. OsteoStrong does not diagnose, treat or cure any disease.
