"It has been hypothesized that eating disorders have multiple and often shared etiologies including biological, psychological, developmental, and sociocultural. A tightly woven network of causes, symptoms, and outcomes of eating disorders makes the study of etiology of these disorders very challenging. Some suggested risk factors for eating disorders require to be defined as either integral parts of eating disorders syndrome such as body dissatisfaction, and perfectionism or outcome of prolonged disordered eating such as functional alterations in serotonin, and some mood disturbances. Researchers should structure their thought processes around this concept that some of currently well-known risk factors for eating disorders are concurrent symptoms of eating disorders. Hence paying special attention to the new and evolved concepts is highly recommended while studying the etiology of eating disorders."