Hoarding Disorder is a relatively new diagnosis in its own right. However, hoarding is not a new behaviour and was previously thought to occur as a symptom of other conditions including OCD, Schizophrenia, Dementia and Depression, as well as physical conditions that limit one’s ability to throw things away. This guide is aimed at sufferers of hoarding, as well as their families and those who want to learn more. We will touch on what hoarding entails, as well as discussing the causes of hoarding, how common a condition hoarding is, and how hoarding is treated.