There are many underlying causes of procrastination. The fear of failure is the most common cause, and involves putting off personal rejection or failure. The lack of discipline involves having no systems of rules or obligations that are set up to help you to determine what to do. There is also the perfection paralysis when being overly concerned about perfection and thus being indecisive. The un-pleasantness of tasks which means dreading the distasteful of the work. These are just a small percentage in the world, I could go for hours telling of other causes.
The fear of failure is putting off personal rejection or failure. "Behavioral procrastination is demonstrated by the tendency to delay a task to avoid threats to self-esteem, threat of failure, and a disregard for aversive tasks (Ferrari & Emmons, 1995)." Herny Murry states "people have a drive to master their environment - a perfectly normal and quiet desirable drive." But he also noted that people would increase this drive and they would soon become a perfectionist. Alfred Alder had also commented that people would rarely increase this drive by turning it into some type of quest. Karen Koreny, Adler's contemporary, noted that they would then create a self-image and try to live by that image. Albert Ellis has defined this state as a dire need "to be thoroughly competent, intelligent, and achieving in all possible aspects." Soon, this drive had become a psychological requirement into one's own aspect of mind. They would then try to obtain the impossible dream of perfection's. People who deny this of being a impossible dream are the perfectionists.
Now when this happens, the person sets up some type of rules that are rigid, so he/she could live by. These rules will be so high, that he/she cannot achieve them because they are not realistic. So in reality, they cannot reach these rules, and they know they can't. But in their mind, they believe they can and thus start procrastinating.