Animal hoarding involves keeping more animals than can be adequately cared for, resulting in severe welfare harm to hundreds or thousands of animals. Understanding the psychology and effective intervention strategies is essential.
Animals in hoarding situations experience severe chronic welfare deprivation — malnutrition, untreated disease, inadequate space, and social disruption. The cumulative welfare harm across hundreds of animals in a single hoarding case can be extraordinary. Effective intervention requires addressing both the immediate animal welfare emergency and the underlying human psychological crisis. Without mental health support and ongoing monitoring, hoarders almost universally acquire more animals after removal. A multi-agency approach that treats hoarding as both an animal welfare and a public health crisis produces the most durable outcomes.