Resources
It's not clear what causes
hoarding.

Some researchers believe that
hoarding occurs on a continuum
—some people may simply be
considered harmless pack rats,
while others have a much more
severe form of collecting that
endangers their life.

Hoarding is currently considered
a subtype of obsessive-
compulsive disorder (OCD), and
it's sometimes called OCD
hoarding. It may one day be
classified as a separate disorder,
though.

Exactly what triggers hoarding
compulsions and desires is still
under investigation. Like OCD, it
may be related, at least in part,
to genetics and upbringing.

-Mayo Clinic

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