A number of factors may play a role in the development of anorexia nervosa. Genetics, hormones, and brain structure may predispose a person to developing an eating disorder. Other risk factors include perfectionism, impulsivity, mood disorders, and a negative self-image. A history of being bullied, sexually abused, or experiencing eating problems or obesity as a child could also increase the risk of anorexia.[1] [2] Social media use and sociocultural beauty ideals have also been identified as potential contributing factors.[3][4]
What causes anorexia nervosa?
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•Last Updated: May 16, 2025
Anorexia nervosa may develop due to a combination of genetic, hormonal, and brain structure factors, along with psychological traits like perfectionism and mood disorders. Additionally, experiences such as bullying, abuse, childhood eating issues, and the influence of social media and beauty ideals can increase the risk.