Minor fractures can sometimes heal on their own, but activities have to be modified so that they do not put extra weight or stress on the affected area. Ideally, a medical professional should always look at any fracture, even a minor one. They will attempt to realign the bones and will stabilize them using a plastic or fiberglass cast, the most common treatment designed to keep the bones from moving while they heal. A person may sometimes be unaware that they have a minor fracture, and in this case the bone may heal on its own, but it may not heal correctly.