Hoarding is not a usual symptom of obsessive compulsive disorder (OCD). There is a separate hoarding disorder, with sufferers accumulating excessive amounts of stuff, and are unable to part with them. So hoarding disorder is separate from OCD. If hoarding behavior occurs in someone with OCD, it is usually from obsessions, such as fear of contamination or feelings of incompleteness. Someone with OCD might not throw away stuff as they are trying to avoid time-consuming rituals, like cleaning rituals for contaminated stuff. And in OCD, the hoarding is not wanted and no pleasure is is derived from it, unlike in hoarding disorder, where the hoarding is intentional, and any attempt to part with their stuff brings great distress. But in OCD, excessive hoarding is not usually present, as it is in hoarding disorder.