What Attracts Bed Bugs to Your House?

Until this page was rewritten, it said bed bugs were attracted to your house by "people, warmth, and hiding places" — the same three words we've used to describe ants, cockroaches, and mice. That's not a fair description of what a bed bug actually does.

Bed bugs don't forage. They don't send out scouts looking for food, and they don't respond to a house the way a colonizing insect responds to a kitchen counter. The entomological literature is direct about this: University of Kentucky Cooperative Extension puts it plainly — "Unlike cockroaches and flies that feed on filth, there is often no relationship between bed bugs and cleanliness. Since the bugs feed solely on blood, pristine dwellings can be as vulnerable to infestation as are places of squalor." A five-star hotel and a neglected apartment are equally exposed, because what decides whether either one gets bed bugs isn't hygiene — it's whether an infested person, bag, or piece of furniture passed through.

Bed bugs arrive as cargo, not as foragers, and the evidence for how ranks fairly clearly. Travel is the strongest single vector — the bed bug resurgence of the last two decades tracks closely with rising travel volume, and a bag left on a hotel room floor or bed is the classic pickup point. Secondhand furniture, mattresses, and box springs are the second-strongest route: an infested item doesn't need any contact with a person to spread the insects, only a ride into your home. In apartment buildings and condos, bed bugs also move unit to unit through shared walls and the gaps around electrical and plumbing lines — genetic studies of building-wide infestations often trace the whole building's problem back to one original introduction. A visiting guest's bag or coat is a real but comparatively minor pathway.

None of these routes has anything to do with what your house looks like on the inside.

There's one nuance worth being precise about, because flattening it would undercut the point. Clutter genuinely matters — not because it attracts bed bugs, but because it gives them more places to hide once they're already in, which makes an infestation harder to find and harder to treat completely. That's a real, practical difference from dirtiness, which does nothing at all. Lower-income households can also end up with worse, longer-running infestations — not because those homes are dirtier, but because professional treatment is costly and hard to access, so a small early problem has more time to grow. None of that is about who deserves an infestation. It's about resources and detection, not blame.