What is the definition of a Phobia ?
It is possible to find quite a number of definitions for a Phobia on the internet. I believe the best description comes from the responding to the question that asks, what is the difference between a phobia and a fear? At the point when the fear in question becomes in some way irrational.
Fear can be a valuable emotion
It is certainly not irrational to have a fear or healthy respect towards a variety of situations like a fear of heights for instance, or being in a car being driven too fast, a nearby riot or being in a war zone etc. In those situations it would make sense to allow that fear to guide us into taking precautions and being very alert to specific dangers. Therefore during those times our fears can become valuable assets and lead to a more positive outcome. However it is when the intensity of fear is disproportionate to the event that it is likely it has become a phobia. Another measurement to determine if the fear has become a phobia is when the fear in question is preventing us from getting on with our life.
A variety of Phobias exist
Due to the literally thousands of types of phobias in existence today and in order to make it fairly simple to categorize and make sense of them, I believe that it is easiest to think of there only being two main categories, they are specific or non-specific phobias. However it has to be said that Social Phobia is really in a category of it's own and is connected to many anxiety related situations.