compulsive hoarding （強迫囤積症），指過度大量收集物品且無法或不願意丟棄任何物品的行為，收集的這些物品會佔去家中很多空間，從而給家人帶來不便、增加煩惱。（Compulsive hoarding (or pathological collecting) is a pattern of behavior that is characterized by the excessive acquisition of and inability or unwillingness to discard large quantities of objects that cover the living areas of the home and cause significant distress or impairment.）