Coulrophobia is an abnormal or exaggerated fear of clowns. It is not uncommon among children, but is also sometimes found in teenagers and adults as well. Sufferers sometimes acquire a fear of clowns after having a bad experience with one personally, or seeing a sinister portrayal of one in the media. The weird appearance of the clowns, swollen red noses and unnatural hair colors makes these persons look so mysterious and treacherous. Adults who are victims of coulrophobia know what they fear is completely irrational and illogical, but they can't escape the circumstance.