Confined space phobia is a type of phobia, sometimes called place phobia or phobia of the square. The translation is different, but actually reflects a fearful reaction to a specific place. Such a place is generally an enclosed environment, such as elevators, cars, buses, and he can not help but have a strong fear reaction once he is inside the place. The first, is that they feel nervous and afraid. The second, there will be physiological reactions, such as muscle tightening, heartbeat, breathing faster and even feel faint reaction. Because such reactions lead him to avoid entering such places, such avoidance may affect the normal life. For example, if he works on the 20th floor, he must take the elevator, he is too afraid to enter the elevator, or every day in the elevator are scared, obviously affecting life, this degree is called phobia, sometimes called place phobia.