Social anxiety disorder can be associated with panic disorder, depression, and obsessive-compulsive disorder. In some cases theses disorders are the impetus for individuals to seek medical treatment.
Social anxiety disorder often occurs alongside low self-esteem and clinical depression, due to lack of personal relationships and long periods of isolation from avoiding social situations. To try to reduce their anxiety and alleviate depression, people with social anxiety disorder may use alcohol or other drugs, which can lead to substance abuse.
The most common complementary psychiatric condition is unipolar depression. Besides depression, the most common disorders diagnosed in patients with social anxiety disorder are panic disorder, generalized anxiety disorder, post-traumatic stress disorder, and substance abuse disorder. Avoidant personality disorder is also highly correlated with social anxiety disorder. Because of its close relationship and overlapping symptoms with other illnesses, treating social anxiety disorder may help understand underlying connection in other psychiatric disorders.