Many people think of anxiety disorders as something like a fear of walking into a room full of strangers, or perhaps a strong fear of public speaking. They might recognize a condition like agoraphobia, a fear of leaving the home or going into open spaces, as an anxiety disorder, but don’t think much beyond that. But there are other types of social phobias and disorders that fall into this category, some of which receive very little attention from the general public. And all of them have characteristics that make them difficult either to diagnose or to treat.