What is the fear of being in closed or isolated places?

The fear of being in enclosed or isolated places is called claustrophobia. Claustrophobia is a specific phobia, which means that it is a persistent and excessive fear of a specific situation or object. In the case of claustrophobia, the fear is of being in a confined space or of being trapped. People with claustrophobia may avoid certain situations, such as elevators, tunnels, or small rooms, or they may experience anxiety or panic attacks when they are in these situations.