How to Check for Bed Bugs: A Step-by-Step Inspection Guide
Bed bugs are masters of hide-and-seek. Because they are tiny and nocturnal, you often won’t notice an infestation until they’ve already started to spread.
Fortunately, they are messy houseguests. Knowing exactly where to look and what evidence to hunt for can help you catch them early, saving you from a massive headache down the line. Here is a straightforward, step-by-step guide to inspecting your home like a pro.
What Do Bed Bugs Look Like?
Before you start searching, you need to know what you are actually looking for:
Adult Bed Bugs: About 5mm long (roughly the size of an apple seed) with flat, oval, brown bodies. After feeding, they balloon up, turning a darker reddish-brown.
Nymphs (Young Bugs): Much smaller, translucent, and pale yellow.
Eggs: Pearly white, tiny, and about the size of a pinhead.
Shed Skins: Paper-thin, pale yellow empty casings left behind as they grow.
The Step-by-Step Inspection
You don't need fancy tools for this—just a bright torch (flashlight) and a card (like an old credit card) to swipe through tight crevices.
Strip the Bed: Remove all sheets, duvet covers, and pillowcases. Examine them closely under good light before washing. Look for small blood spots, tiny dark brown or black specs (bed bug droppings), and discarded skins.
Inspect the Mattress Seams: Bed bugs love fabric folds. Run your torch and a plastic card along the piping, seams, labels, and tufts of your mattress. Look for live bugs or dark pepper-like spots.
Check the Bed Frame and Headboard: Pop the mattress off and inspect the bed base. Check wooden joints, slat supports, screw holes, and the dark crevices behind the headboard.
Search Nearby Furniture: If the colony is growing, they will branch out. Pull out nightstand drawers, check the seams of nearby upholstered chairs or sofas, inspect curtain folds, and look behind picture frames or loose wallpaper.
Examine Recently Used Luggage: If you've recently travelled, inspect your suitcases, backpacks, and laundry bags. Check the seams, zips, and pockets before bringing them back into your wardrobe.
What to Do If You Find Bed Bugs
If you spot signs of an infestation, the golden rule is do not panic—and do not start moving your furniture around. Dragging a mattress or clutter into other rooms will only spread the bugs throughout your home.
Instead, take these targeted steps:
Bag and wash: Seal your bedding and clothes in plastic bags before carrying them to the washing machine. Wash and dry them on a hot cycle (60°C or high heat) for at least 30 minutes to kill all life stages.
Vacuum strategically: Thoroughly vacuum your mattress, bed frame, and the surrounding floor. Immediately empty the vacuum bag into an outdoor bin, or wash your canister with hot, soapy water.
Hold off on DIY sprays: Off-the-shelf bug sprays often fail to kill the eggs and can actually cause the bugs to scatter deeper into your walls, making the problem harder to treat.
The most reliable way to clear a bed bug problem completely is to contact a professional pest control service. They have the specialised heat and chemical treatments needed to reach deep into the hiding spots you can't see.