Second-hand furniture is a bargain, but it can also carry unwanted guests. Bed bugs hide in the joints and fabric of sofas, beds and chairs. A careful look before the item crosses your threshold is the best protection.

Why used furniture needs care

The NHS advises against bringing second-hand furniture into the home without inspecting it. That is because bed bugs hide in bed frames, mattresses, furniture and even behind pictures. A cheap item can therefore turn into an expensive problem.

This does not mean every used item is risky. Most are fine, and sellers are often unaware of any issue. Still, a few minutes of checking is worth far more than a few days of worry.

Cleanliness is no guide either. The EPA says bed bugs are not attracted to dirt, so a tidy home can still have them. For that reason, judge the item on the evidence you can see, not on how the seller or the room looks.

Check before you buy or collect

If you can, view the item in daylight. Bring a torch, a phone camera, a ruler and a pair of gloves. Ask the seller for permission to turn the piece over and move cushions.

Look for the main signs first. The US EPA lists rusty or reddish stains, dark spots that may bleed into fabric like marker ink, tiny pale egg shells and live bugs. Our bed bug signs guide shows each of these in more detail.

Be wary of an item that has been recently cleaned, covered or moved. A fresh throw or heavy perfume may simply be good housekeeping. However, if you find fresh marks beneath it, take that as a reason to walk away.

Where to look on a sofa or armchair

Start with the seams. Run a torch along the piping and the stitching, then lift each cushion and check the underside. Zips, labels and the folds where the arm meets the seat are all worth a look.

Next, turn the piece over if you can. Check the dust cover on the base, because loose fabric makes a good hiding place. Look closely at the staples and the corners of the frame.

The EPA notes that in heavier infestations, bed bugs occupy the seams of chairs and couches, between cushions and in the folds of curtains. Therefore, upholstered pieces near a bed deserve the most attention. Wooden arms and legs matter too, since the EPA notes that bed bugs can hide in cracks and even in the head of a screw.

Where to look on a bed or mattress

Beds and mattresses deserve the closest look, because the CDC names mattress seams and box springs among the usual hiding places. Many people avoid used mattresses altogether for this reason. If you do consider one, follow our step-by-step guide on how to inspect a mattress for bed bugs.

Check the bed frame joints, slats and headboard fixings. Pale wood shows dark specks clearly, whereas dark wood hides them. Use a torch at a low angle to cast shadows into cracks.

Remember that a clean frame does not guarantee a clean mattress, and the reverse is also true. Check every part separately. If you are unsure, it is safer to leave it.

Do not mistake other marks for bed bugs

Used furniture is often marked by age, while bed bug evidence is usually more specific. Mould, spilled drinks and old stains can look like droppings. Our comparison of bed bug droppings and mould explains how to tell them apart.

Live insects can be misleading as well. Carpet beetle larvae live on fabrics and carpets and are a frequent cause of false alarms. Our guide to bed bugs and carpet beetle larvae shows the differences, and our lookalikes guide covers more.

Knowing the stages of development also helps. Pale, small nymphs and shed skins look very different from adults. Our guide to the bed bug life cycle stages explains what you might see.

Questions to ask the seller

A few polite questions can save a lot of trouble. Ask how long the item has been in the home and whether it has been stored anywhere else. Ask whether anyone has had pest problems, and whether the seller minds you checking underneath.

Of course, a seller may not know or may not say. For that reason, your own inspection matters more than the answers. A seller who refuses any inspection at all gives you a reason to think twice.

If you collect from a shared property, look at the surrounding area as well. Check the van, the hallway and any other items stored beside it. Evidence nearby suggests the problem is wider than one piece.

If you find evidence

Do not buy the item, and do not carry it indoors. If you already have it at home, keep it where it is, seal nearby fabrics in bags, and avoid moving it between rooms. Moving it spreads any insects to new places.

Photograph what you find with a ruler beside it, because clear images help later. Our guide to photographing an insect for identification explains the best angles. If you caught an insect, read our found a bug page on keeping a specimen.

The EPA advises that infested furniture should be slashed or otherwise destroyed so that nobody else takes it and picks up bed bugs. Think about that before you leave a bagged item on the kerb. Check your local council’s guidance on bulky waste, since rules differ.

After you bring something home

Even when an inspection finds nothing, stay alert for a few weeks. Check the item again after a week or so, and keep an eye on the bed area. Because early infestations are small, a second look can find what the first missed.

Some people place passive monitors under furniture legs to catch wandering insects. Our guide to bed bug interceptor traps explains what they can and cannot tell you. They are a back-up, not a substitute for a good inspection.

Do not rely on bites to decide anything. Reactions differ widely, and our bites guide explains why marks alone are not proof. If you want to separate fact from rumour about used furniture, our piece on bed bug myths is a useful companion.

When the furniture belongs to a landlord

If you rent a furnished home and find signs, the situation is different. You may not be able to decide what happens to the furniture. Our guide to bed bugs in rented homes explains how to report the problem and keep a record.

Take dated photos before you do anything else. Written notes help as well, since they show when you first noticed the problem. Keep copies of any messages you send.

Next steps

Use the five-question checker to weigh up what you have seen. It runs in your browser and sends nothing anywhere. It can show how strong your evidence is.

If you have a specimen or a clear photo, read what to do when you find a bug. You can also ask a professional to confirm what you have through our contact page. They can advise on what to do next.

Questions and answers

Is it safe to buy a second-hand sofa or bed?

It can be, if you inspect it carefully first. The NHS advises against bringing in second-hand furniture without checking it, so look closely at seams, joints and the underside before you take it home.

Should I take a free item left on the street?

Be cautious. You cannot know where it has been stored, and the EPA suggests destroying infested furniture so that nobody else picks it up.

Can I treat used furniture myself?

Inspection is the safest first step. The NHS says it is very difficult to remove bed bugs yourself, so a professional is the usual route if you find evidence.

Sources

We checked the facts in this article against these sources. However, this article supports triage, not diagnosis, so keep any specimen for an expert.