A codependency checklist is an important tool for those who are struggling with codependency, or those who suspect that they may have a codependent relationship. Codependency is defined as an excessive emotional, physical, and psychological reliance on another person to the point of neglecting one’s own needs and interests. This unhealthy dependency can lead to decreased self-esteem, impaired functioning in relationships, and a lack of personal development. A codependency checklist can help identify patterns of codependent behavior so that individuals can work towards establishing healthy boundaries.