The #1 Phobia in the world is Arachnophobia.
Arachnophobia is the fear of spiders and is most common in woman however it can also be found in men as well.
A list of the most common phobias which include the Arachnophobia are.
Arachnophobia (Fear of spiders)
Ophidiophobia (Fear of snakes)
Acrophobia (Fear of heights)
Aerophobia (Fear of flying)
Cynophobia (Fear of dogs)
Astraphobia (Fear of thunder and lightning)
Trypanophobia (Fear of injections)
Social Phobia (Social anxiety disorder)
Agoraphobia (Fear of a situation where escape may be difficult)
Mysophobia (Fear of germs)
Claustrophobia (Fear of small spaces)
Glossophobia (Fear of public speaking)
A phobia is a type of anxiety disorder defined by a persistent and excessive fear of an object or situation.
Phobias typically, result in a rapid onset of fear and are present for more than six months.