Hyperthyroidism
Also called: overactive thyroid
What it means
Hyperthyroidism is an overactive thyroid gland that speeds up bone remodeling so much that bone-building cells can't keep up with bone breakdown.
An overactive thyroid can quietly thin your bones over time, so managing it well matters for keeping your skeleton strong.
Hyperthyroidism means your thyroid gland is overactive, producing too much thyroid hormone. This can happen on its own or from taking more thyroid medication than your body needs. Either way, it speeds up your whole bone remodeling cycle.
The problem is a mismatch in timing: osteoclasts, the cells that break down old bone, start working faster, but osteoblasts, the cells that build new bone, can't keep pace. Over time this imbalance can thin your bones.
The good news is that hyperthyroidism is a treatable condition, and with proper medical management, bone loss linked to it can often be slowed or even reversed. Any changes to thyroid medication or treatment plans should be decided together with your prescriber.
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
Hyperparathyroidism is when overactive parathyroid glands release too much hormone, causing your bones to lose…
Bone remodeling is the lifelong cycle where cells called osteoclasts remove old bone and osteoblasts build new bone…
Osteoclasts are the cells that break down old bone tissue, working alongside bone-building osteoblasts to constantly…
An osteoblast is a cell that builds new bone by laying down fresh bone matrix, working alongside cells that break…
Osteoporosis is a condition where bone breakdown outpaces bone building, causing bones to become thinner, more…
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.
