The word phobia is a scientific term which means "fear". The phobia is called as a fear of something, which people obtains after happening some incident. Phobia are faced by people.
Some people have the fear of water, height etc. The fear of water arises sometimes if a person has drowned, then his mindset is such like, he can even drown other time as well that is the reason of water phobia. The phobia of height is because, the mindset is such that, the one can fall down from a height. The phobia of current and electricity arises as the mindset is, one can get current from any electric appliances.
These are the most common phobias. The phobias remains there till some period of time. Phobias getting after incident can recover within a days or it can take more time as well.