In the context of an eating disorder, co-morbid conditions are other types of illnesses that occur at the same time as the eating disorder. These co-occurring conditions can complicate treatment if not adequately addressed, therefore it is very important that a comprehensive assessment be completed to determine the most appropriate, individualized treatment approach and providers. Examples of other psychological illnesses that often co-occur with eating disorders: Attention deficit disorder, Bipolar disorder, Body dysmorphic disorder, Chemical dependency, Depression & Anxiety disorders, Obsessive Compulsive Disorder, Post-Traumatic Stress Disorder, Borderline Personality Disorder. It's important to not base a diagnosis solely on symptom presentation during an active eating disorder as malnutrition and weight instability can exacerbate symptoms. However, accurate diagnosis and comprehensive treatment for co-morbid conditions is essential.