At least 13 factors significantly contribute to relapse. Failure to understand or accept chemical dependence as a disease. This is the fundamental factor which can precipitate relapse. Although its exact etiology is not known, chemical dependence does have biogenetic and psychosocial factors which contribute to its onset. And as it progresses, it does follow a generally predictable course with some variations due to the various personal, interpersonal, and situational factors present in one's life.
Chemical dependence is a chronic progressive disease which is terminal if untreated.
Denial of loss of control. This important factor involves a lack of acceptance of the disease precept at a personal, experience level. I just don't have it that bad. So I can drink again as long as I am careful. Denial involves failure to make a personal connection between abusing mood-altering chemicals and the problems which follow.