Why do people lie pathologically?

There are many reasons people lie pathologically. It could be from family abuse.

it can simply be the person doesn't think they rank high on the ladder of life and make up stories to make themselves look better to others, or because they want sympathy or attention that they are not getting. There are just too many reasons.

Pathological Liars are not terrible people and often times can be quite funny just trying to squirm out of a lie someone has caught them in, but it does put a monkey wrench into any relationship they have with family, friends and their mates.