
Crohn's disease
Also called: Crohns disease
What it means
Crohn's disease is a digestive condition that inflames and damages the gut lining, which can reduce the body's ability to absorb calcium, vitamin D, and other nutrients bones need.
If you have Crohn's disease, your bones may be affected by poor nutrient absorption, so understanding this helps explain bone density results and guides the right follow-up care.
Crohn's disease is a condition that causes inflammation in the digestive tract, and it can damage the lining of the gut. This matters for bone health because that lining is where your body absorbs calcium, vitamin D, and other nutrients bones need. When absorption is reduced, even a well-balanced diet may not deliver enough of these building blocks to your bloodstream.
Because of this, someone with Crohn's disease can have lower bone density, but the cause is different from someone whose low density comes from an inactive lifestyle. Bone-related issues with Crohn's disease are sometimes made more complex by other factors, like steroid medications used to manage the condition, which can further affect bones.
This is why a DEXA scan result alone doesn't tell the full story. Two people can have the same bone density number for very different reasons, and figuring out whether Crohn's disease, medication use, or malabsorption is involved helps point toward the right kind of medical follow-up.
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.
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

Celiac disease is an autoimmune condition that damages the small intestine, often reducing absorption of calcium,…

Inflammatory bowel disease (IBD) covers conditions like Crohn's and ulcerative colitis, where gut inflammation and…

Vitamin D is a nutrient that helps your gut absorb calcium so it can be used to build and maintain bone.

Calcium is the main building-block mineral in bone, and since your body can't make it, you need to get it from food…

A DEXA scan is a low-radiation X-ray test that measures how much mineral is in your hip and spine bones, giving you…

Corticosteroids like prednisone and dexamethasone are anti-inflammatory medications that, especially with long-term…
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.


