The disorder remain largely unnoticed because people who have it are embarrassed to talk about it. This is because toenail fungus is a cosmetic disease that can really affect a person socially. The disease is characterized by a discoloration and distortion of the toenails that is simply too embarrassing and offensive to show to other people. Toenail fungus is also contagious so people who are suffering from it are always conscious about spreading the disease. Moreover, toenail fungus is accompanied by a very foul odor. Often, people with this disease would rather stay at home than go out and run the risk of being embarrassed in public or spreading the disease.