恐懼症是一種不理性及通常很難解釋的恐懼，它會引起一起無法自我控制的生理反應。
A phobia is an irrational and often unexplainable fear that causes an uncontrolable physical reaction.

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它的症狀可能很溫和並不嚴重，例如:哭泣或心跳加速;有時症狀會很發揮極致，如同上述所說。
The symptoms may be mild,such as sweating or increased heart rate,or they may be extreme,as in the attack described above.