The forearm has 2 bones – one is called the radius (on the same side of the forearm as the thumb) and the other is the ulna (on the same side of the forearm as the small finger). Forearm fractures can occur anywhere in these bones, from the elbow to the wrist, and may even be associated with a dislocation (when a bone pops out of a joint). Forearm fractures often occur through the growth plate, which is made of cartilage, because the cartilage is weaker than the bone.
Children love to play and run, and this can lead to a child falling onto their arm, leading to a fracture. Forearm fractures are the most common fractures in children (up to 50% of all fractures in children!) and occur in 1 out of every 100 children. The vast majority of these fractures can be treated with just a cast or splint, although some of them may need to be reset to improve the alignment of the bones.