A morbid fear of open spaces (as fear of being caught alone in some public place).
Morbid fear of open spaces. Phobia involving fear of open spaces and public places. The anxiety produced can be so severe that some sufferers are unable to leave their homes for many years.
Agoraphobia affects 1 person in 20 at some stage in their lives. The most common time of onset is between the ages of 18 and 28.