Fobia específica is characterised by a marked and excessive fear or anxiety that consistently occurs upon exposure or anticipation of exposure to one or more specific objects or situations (e.g., proximity to certain animals, flying, heights, closed spaces, sight of blood or injury) that is out of proportion to actual danger. The phobic objects or situations are avoided or else endured com intense fear or anxiety. Symptoms persist for at least several months and are sufficiently grave to result in significant distress or significant impairment in personal, family, social, educational, occupational, or other important areas of functioning.