Sharp and persistent fear that is excessive or irrational, triggered by the presence or anticipation of a specific object or situation (eg, flying, cliffs, animals, giving injections, sight of blood). Being in this situation, it almost invariably provokes an immediate anxiety response, which can take the form of a crisis of situational anxiety or more or less related to a certain situation. Once the situation is over, the person recognizes that this fear is excessive or irrational.