An X-ray may not be able to capture certain types of fractures such as wrist fractures, hip fractures and stress fractures. In such cases, your doctor may order a computed tomography (CT) scan , magnetic resonance imaging (MRI) or a bone scan instead. Alternatively, your doctor may order a second X-ray about 10 – 14 days after your first X-ray to allow your fracture to heal. Healing can make your fracture more visible in an X-ray.