Place phobia is mainly manifested as fear of certain specific environments, such as high places, squares, objective environments, and crowded public places  It often starts with a spontaneous panic attack, and then produces anxiety about expectations and the behavior of avoidance, and finally becomes conditioning  Some clinical studies have shown that, patients with place phobia are often accompanied by panic attacks
Place phobia may be related to heredity and panic disorder.
 However, some experts believe that the first panic attack is a necessary condition for the onset of  place phobia, and therefore claims that  place phobia is the consequence of the development of panic attacks and should be involved into the category of panic disorder