The forearm is the part of the arm between the wrist and the elbow. It is made up of two bones: the radius and the ulna. Forearm fractures are common in childhood, accounting for more than 40% of all childhood fractures. Forearm fractures are typically caused by a fall onto an outstretched arm, a fall directly on the forearm, or a direct blow to the forearm. Some stable fractures, such as buckle fractures, may simply need the support of a cast or splint while they heal. In some cases, surgery is needed to align the bones and secure them in place.