Bed bugs are not a housekeeping problem, and the belief that they are is the main reason infestations spread as far as they do. People assume a clean apartment is a safe one, delay reporting out of embarrassment, and by the time anyone acts the problem has moved through a wall.
They travel in luggage, furniture and moving boxes. The strongest predictor is turnover, not tidiness, which makes rental housing exposed regardless of price or upkeep.
Detection is learnable, and doing it early changes both the cost and the legal position.

Do Not Wait for Bites
The most common way people discover an infestation is also the slowest and least reliable.

Bites are a poor indicator
Federal guidance is unambiguous on this. According to the EPA, bites on the skin are a poor indicator of a bed bug infestation, because they can resemble bites from mosquitoes or chiggers, rashes such as eczema or fungal infections, or hives.
More usefully, some people do not react to bed bug bites at all. A partner sleeping in the same bed without a mark is not evidence that the bedroom is clear.
Look for what they leave behind
The reliable method is inspecting for physical evidence rather than interpreting skin.
What to Actually Look For
The inspection takes a few minutes and is worth repeating after travel or after a neighbor reports a problem.

Start at the mattress seams
Pull the bedding back at the head of the bed and examine the piping, seams and tags of the mattress, then the box spring.
The signs are small and specific: reddish staining where bugs have been crushed, dark excrement specks that bleed into fabric, eggs and shed skins around a millimeter across, and live insects tucked into the seam.
Then the frame and headboard
Check cracks in the frame and headboard, particularly where a headboard meets the wall. Wall-mounted headboards are a known harborage and are rarely moved during cleaning.
Then outward
In an established infestation they spread outward into upholstered furniture, curtain pleats, wall and ceiling junctions, loose wallpaper and outlet covers. In a multi-unit building they also spread sideways, through shared walls and along utility runs, which is why a neighbor’s problem quickly becomes yours.
Michigan publishes its own guidance
The state maintains a public resource on bed bugs through its health department, which is a reasonable place to start for identification and treatment expectations specific to Michigan housing.
Who Pays for Treatment
This is the question that produces the most conflict, and the answer depends on facts rather than on a single rule.

Landlords owe habitability obligations
Michigan law imposes duties on landlords to keep rental premises fit for their intended use and in reasonable repair. A significant infestation in a multi-unit building, particularly one that has spread between units, sits squarely within that framework rather than being a tenant housekeeping matter.
That framing matters because treatment in an apartment building is rarely effective unit by unit. Treating one apartment while the adjoining units go untreated tends to relocate the problem rather than resolve it, which is an argument for building-wide response rather than a tenant-by-tenant negotiation.
Written notice is the pivot point
This is the practical core. A landlord’s obligation is measured substantially by what they knew and when. A verbal complaint to a building manager is easy to dispute and easy to forget.
Notice in writing, dated, describing what was found and where, converts general awareness into documented knowledge. It is the single most valuable thing a tenant can do, and it takes five minutes.
Where disputes usually land
Landlords frequently argue the tenant introduced the infestation, particularly with a single affected unit. Tenants point to building-wide patterns, prior complaints, and treatment history in adjacent units. Whoever has the better documentation generally prevails, and that is usually decided long before anyone involves a lawyer.
Do not treat it yourself and stay quiet
Self-treatment with retail products commonly drives the insects into wall voids and adjacent units, making eventual professional treatment harder and more expensive. It also muddies the question of who caused what.
According to Nicholas R. Thompson, the personal injury attorney who handles bed bug injury claims nationally as The Bed Bug Barrister, these disputes are rarely about the insects and almost always about what the property’s own records show it already knew, which is why a dated written complaint frequently matters more than anything gathered later. Tenants dealing with an unresolved infestation often contact a Michigan bed bug bite attorney while the infestation is still active and the evidence is still in the unit.
Protecting Yourself Either Way
Photograph what you find in place, with something for scale, before moving anything.
Keep your written complaint, the reply, and any pest control reports in one place. Note the dates of every treatment and every follow-up inspection, because the pattern of repeat treatments in the same block of units is what distinguishes an unlucky occurrence from a known problem being managed quietly.
And when you travel, keep luggage off beds and carpet and inspect before unpacking. The EPA guidance on protecting your home sets out reasonable precautions, and most infestations in otherwise well-kept buildings arrive in a suitcase.

