Like many other mental health conditions, social anxiety disorder likely arises from a complex interaction of environment and genes. Possible causes include:

  • Inherited traits. Anxiety disorders tend to run in families. However, it isn't entirely clear how much of this may be due to genetics and how much is due to learned behavior.
  • Brain structure. A structure in the brain called the amygdala (uh-MIG-duh-luh) may play a role in controlling the fear response. People who have an overactive amygdala may have a heightened fear response, causing increased anxiety in social situations.
  • Environment. Social anxiety disorder may be a learned behavior. That is, you may develop the condition after witnessing the anxious behavior of others. In addition, there may be an association between social anxiety disorder and parents who are more controlling or protective of their children.
Sep. 12, 2014

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