Definition

How Bones Heal

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Bone is living tissue made up of cells. When a bone breaks, bleeding, swelling, and blood clotting happen in the injured area. As the bone heals, the clotted blood is replaced with fibrous tissue and cartilage.

Bones heal through a slow process called remodeling. This is when the bone continues to form and becomes compact. The length of this process depends on your general health and age. It also depends on the type of break and how serious it is.

Other things that affect healing include:

  • Medicines you take

  • If you smoke. Smoking delays bone healing.

  • How well the injury is cared for

Bones usually take about 6 to 12 weeks to heal.

Cross section of broken bone showing blood clot forming at break.Cross section of broken bone showing fibers forming in blood clot at break.Cross section of broken bone showing callus forming at break.Cross section of bone showing healed fracture.

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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