What Is a Growth Plate? Growth plates are the areas of new bone growth in children and teens. They're made up of cartilage, a rubbery, flexible material (the nose, for instance, is made of cartilage).

What Is a Growth Plate? Growth plates are the areas of active, new bone growth near the ends of bones. They're made up of cartilage, a rubbery, flexible material (the nose, for instance, is made of ...