Bed bugs can have significant impact on people’s health and quality of life. Knowing how to spot them is therefore essential in order to act quickly to prevent and effectively control bed bug infestations.
Size comparison between a bed bug and an apple seed (4 to 7 mm).
Recognising bed bugs and their eggs
Bed bugs have the following characteristics:
They are visible to the naked eye
Adult bed bugs are usually brown in colour. When filled with blood, their colour ranges from red to dark brown
They are oval in shape and about the size of a flattened apple seed, 4 to 7 mm in length
They neither jump nor fly
They move at the speed of an ant
They have a lifespan of 5 to 6 months. However, they can live more than a year without feeding when in a dormant state
Bed bug eggs have the following characteristics:
They are whitish in colour
They are the size of a pinhead
They are laid-out in clusters and attached in various small, tight spaces
They hatch about 10 to 14 days after being laid
Spotting the presence of bed bugs
Bed bugs are most active at night. They mainly live in bedrooms. They avoid light, seeking shelter in dark, narrow and inaccessible places.
Certain clues can help spot the presence of bed bugs.
Bed bugs bites on a back. Source : James Heilman, MD - Wikimedia Commons
Clues on the skin
Bites similar to those of mosquitoes, which cause itchiness
Bites that appear on parts of the body not covered during sleeping hourswhen asleep. The first bites can be clustered or aligned on your skin if you’ve slept in a heavily infested area. Afterwards, if you continue to live in the infested place, bites appear all over your bodyskin.
Grouping of bed bugs. Source : James Heilman, MD - Wikimedia Commons
Clues on the bed
Small black spots on sheets, mattresses or bedsprings. These spots come from bed bug excrements;
Presence of live or dead bed bugs, shed skin or eggs near the sleeper. These traces can be found in on the bed or near it
Bed bug hiding places
At the beginning of an infestation, beg bugs tend to hide near the place they feed,. They hide onunder the mattress and the bedspring , meaning close to the sleeping person they will bite.
When the infestation grows, the bed bugs can spread and hide elsewhere in the bedroom. They can then move to other rooms.
Here are examples of possible hiding places :
Bedsprings, seams and bottoms of mattresses, and hems of bedding
Headboards, bedroom furniture and drawers
Clothing, backpacks, handbags and suitcases
Chairs, wheelchairs, sofas and covers
Carpets and curtains
Mouldings and window or door frames
Back of baseboard heaters and electrical outlets
Peeled tapestry, frames and posters
Cracks in the plaster, wood or floor
Papers, books, telephones, radios and clocks
Knowing how bed bugs spread
The larger the infestation, the more bed bugs will spread to other rooms in the house and to other lodgings.
Bed bugs can be found everywhere, even in the cleanest houses and hotels. They can move in very narrow and inaccessible places, such as a gap the thickness of a credit card.
Bed bugs spread:
Through close contact with frequently used items such as clothing, handbags, wheelchairs, mattresses, sofas, etc.
When transporting infested items, especial during house moves
Through walls, ceilings and floors, by crawling into pipes, ducts, electric cables or other openings
Through bed sheets, clothing or other fabrics brought to private or public laundry facilities
Through used items bought at flea markets, second-hand stores, and used furniture stores
Through the recuperation of furniture or objects left on the street
During trips, in infested luggage, bags, clothing or sleeping bags
Preventing bed bug infestation
Here are a few tips to avoid bed bug infestation.
Avoid clutter
Avoid accumulating stuff and leaving them laying around the house. This way, you will reduce the number of places in which bed bugs can hide.
Inspect all second-hand clothing
Be cautious when you get second-hand clothing. Make sure you inspect them carefully. Carry clothes in a sealed bag, in such a way that nothing can enter or leave the container. As soon as you get home, clean the clothes following these tips for treating fabrics and objects.
Inspect all used articles
Avoid bringing home used items in bad condition or left on sidewalks, such as mattresses, bedsprings, wood or upholstered furniture. Bed bugs can infest these items.
Should you wish to take one of these used items home, inspect them carefully. Treat them with hot steam by following these steps for treatment without washer or dryer. Place mattresses or bedsprings in an anti-bed bug cover afterhot steam treatment.
Preparing your move
Before choosing a mover, ask about the measures proposed against bedbugs.
All your clothing, curtains, bedding, mattresses, furniture and other belongings should be placed in tightly sealed plastic bags.
Close your cardboard boxes and block the holes and cracks with large-sized adhesive tape.
On moving day, inspect the truck before loading your furniture and other belongings. Make sure it has been cleaned (steam, vacuum cleaner, disinfectant) and, above all, make sure it is free of bedbugs.
If there were bedbugs in your former dwelling and they were not exterminated before you left, they may move with you. A new dwelling won’t make them disappear.
When you go to a hotel, put your suitcases on luggage racks or in the bathtub. Avoid storing your clothes and personal belongings in drawers or placing them on the floor or bed.
Briefly inspect your bedroom, especially your bed. If you detect the presence of bed bugs in the room, on your clothes or elsewhere, put all your personal effects in a plastic bag. Seal the bag and keep your stuff in it until you have treated them. To treat your personal effects, follow thesetips for treating fabrics and objects.
Inspect your luggage after travelling
Upon your return, place your luggage on a hard surface, such as the bathroom, entrance or garage floor. Inspect your luggage carefully.