In comparison to other insect bites, bed bug bite marks are usually in groups of three or more when they appear on the skin. This is sometimes called the “breakfast, lunch and supper bites”. As you can see in the picture below, the bites are rather close to each other. Their bites often look like little red bumps, pimples or even blisters and welts. Some people can also mistake them for flea bites. If one of these insects bite you, you usually won’t even feel it as it uses a form of anesthetic which dulls the pain. Bed bugs also are known to leave bite marks in a straight line, also in close proximity to each other. A single bed bug can bite you a number of times during the night. However, if you have a bed bug infestation, there are usually a large number of these little pests and this can result in a multitude of bite marks. Please also remember that some people may not have a negative reaction to these bites. In fact, sometimes they are mistaken for spider bites, even by medical professionals so make sure you let your doctor know if you feel it could be a bite from bedbugs. Lastly, you will be happy to learn that bed bugs do not fly so you won’t be attacked from the air.
Some people develop allergic reactions to bedbug bites, which can include a fever, difficulty breathing, hives, or a swollen tongue. Others may develop an infection where the bite starts oozing pus. If you experience either of these reactions or you develop blisters where the bites occurred, it’s a good idea to make an appointment with a dermatologist.
Just because you can't see bed bugs, does not mean that they are not still there. Bed bugs are rarely seen in the day, out in the open or on the surface of beds or chairs. They have been described as champions of hide-and-seek. So, it is not uncommon to miss the bed bugs altogether. Bed bugs love to hide in the cracks and crevices associated with mattresses, cushions, bed frames and other structures, which is why it is very important to look for telltale symptoms of bed bugs and signs of an infestation, such as shed skins and specks of blood or feces on linens, furniture, mattresses and other areas where the bugs might be hiding.
To avoid light, bedbugs hide in the seams of mattresses and crevices of bed frames, walls, and furniture during the day.5,7 They are attracted to human hosts by warmth and carbon dioxide; these hosts generally sleep within 3 to 7 feet (1 to 2 meters) of the bedbugs’ hiding places.8,9 Feeding usually takes place just before dawn.10 Bedbug saliva contains several anesthetic, vasodilatory, anticoagulant, and proteolytic compounds that allow the insects to feed undetected for five to 10 minutes. Three of these compounds have been identified as instigators of the subsequent hypersensitivity reactions that may be noticed when the host awakens.11–14
Vanessa: I am so glad I found your website. My family and I just returned from vacation two days ago, and my youngest children are covered with bed bug bites. At first, we did not know what they were. The bites started after the first night of staying there. They got increased in number and became worse over the week. We had no clue. Bed bugs never crossed our minds. I took them to the doctor as soon as we got home and we got the news. BED BUGS!
However, low-level infestations are also much more challenging to find and correctly identify. Other insects, such as carpet beetles, can be easily mistaken for bed bugs. If you misidentify a bed bug infestation, it gives the bugs more time to spread to other areas of the house or hitchhike a ride to someone else's house to start a new infestation. Learn about identifying bed bugs.
Jump up ^ Anderson, J. F.; Ferrandino, F. J.; McKnight, S.; Nolen, J.; Miller, J. (2009). "A carbon dioxide, heat and chemical lure trap for the bed bug, Cimex lectularius" (PDF). Medical and Veterinary Entomology. 23 (2): 99–105. doi:10.1111/j.1365-2915.2008.00790.x. PMID 19499616. Archived (PDF) from the original on 16 August 2017. Retrieved 27 May 2010.
It is important to remember that they have a very flat body that allows it to hide almost anywhere. During the initial onset of the infestation, they are only visible around the tufts and seams of the mattress. As the infestation grows, these bugs spread out and inhabit larger and larger areas. Generally they prefer rough surfaces like wood or paper for their harborages.
Bring a little flashlight—hotel room lighting is always pretty poor and the dimmer the lighting, the harder it is to see small bed bugs or their fecal spots. I would pull back the bed covers and look all around the head of the bed. Pull back the sheets, too, and look at mattress seams and edges that are exposed. bed bugs love to hide under mattress tags. Look all around the box springs, too. If there's a dust ruffle, pull it up and look under it as much as possible. Look for moving bugs and stationary, hiding bugs.
If you suspect an infestation, experts recommend finding a professional exterminator who has experience dealing with bedbugs. Sprayed insecticides are commonly used to treat infestations, and exterminators may also use nonchemical methods, such as devices to heat a room above 122 degrees Fahrenheit (50 degrees Celsius), a lethal temperature for bedbugs, according to the Mayo Clinic. Freezing infested items for a few days at temperatures below 0 F (-18 C) may also put bedbugs to permanent rest, according to the University of Minnesota. But you may have to throw out heavily infested mattresses and other items of furniture.
While cleaning up infested areas will be helpful in controlling bedbugs, getting rid of them usually requires chemical treatments. Because treating your bed and bedroom with insecticides can be harmful, it is important to use products that can be used safely in bedrooms. Do not treat mattresses and bedding unless the label specifically says you can use them on bedding.