Our bones are very strong, but if we fall badly or something hits us very hard, a bone can break. Imagine you are playing with your favorite toy and accidentally throw it — it might break into pieces! The same thing can happen with our bones.

When a bone breaks, it takes time and care to heal. Doctors use special armor, like a hard plaster shell, to keep the bone pieces still and safe. This way, they can grow back together and become strong again.