What Is a Greenstick Fracture? A greenstick fracture is a type of broken bone. A bone cracks on one side only, not all the way through the bone. It is called a "greenstick" fracture because it can look like a branch that has broken and splintered on one side. Who Gets Greenstick Fractures? Most greenstick fractures happen in kids younger than 10 years old because their bones are softer and more flexible than adult bones. In teens and adults, the injury may cause the bone to break all the way through. But in kids, the bone breaks on one side only. How Do Greenstick Fractures Happen? Greenstick fractures usually happen when someone falls and reaches a hand out to break the fall. How Are Greenstick Fractures Treated? Usually, orthopedic specialists treat this type of fracture with a cast. Back to Articles Related Articles Broken Bones Bones are tough stuff - but even tough stuff can break. Find out what happens when a bone fractures. Read More First Aid: Broken Bones A broken bone requires emergency medical care. Here's what to do. Read More How Broken Bones Heal Broken bones have an amazing ability to heal. New bone forms within a few weeks of the injury, although full healing can take longer. Read More Casts This article for teens has tips on taking care of a cast so it keeps working as it should. Read More Splints A splint is a support device that keeps an injured area from moving. Doctors often use splints to hold bones and joints in place so they can heal after a fracture. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.