Bed bugs often hide in seams, folds and crevices of mattresses, box springs, bed frames and headboards. A thorough inspection requires dismantling the bed so that upper and lower seams and surfaces can be examined. Things to look for are the bugs themselves, shed skins of the nymphs (immature bed bugs), and the blackish fecal spots. The dark spots of dried bed bug excrement are often present along mattress seams or wherever the bugs have resided. Box springs afford many places for bed bugs to hide, especially along the upper seams and underneath, where the bottom edge of the box rests on the frame. If an underlying dust cover is present, it may have to be removed to gain access for inspection and possible treatment. Successful treatment of mattresses and box springs can be difficult, however, and infested ones may need to be discarded or encased in a protective cover. 
Its important to note that bed bugs can easily be transferred from other locations (such as hotels, friends, etc.) into your bedroom, something your definitely want to avoid! Its important to always check your skin, clothing and bags for any signs of bed bugs (and their bites) before entering your bedroom after sleeping away from the home. If you have been bitten a couple times, there is usually no urgent need for medical care. In fact, there are a number of effective home remedies that you can use to treat these insect bites. However, sometimes medical assistance is required. When is this the case and how can you identify when professional help is needed?

On Tuesday my arm became worse after spending the night at my friend’s place. At home, when I got out of the shower a bug near my jeans and killed it. I called my doctor to treat my arm and mentioned the bug. He saw me that day and put me on prednisone. Last night I took the antihistamine he prescribed, and it knocked me right out. I fell asleep on my friend’s shaggy carpet for about an hour and a half. As I awoke, I saw another bug run across my shorts.
Zonalon and Prudoxin (doxepin) are topical creams that can be prescribed for relief from itching. The active ingredient in these products is a topical tricyclic antidepressant and seems to work against itching by reducing histamine. Histamines are chemicals your body produces in response to injury or when having an allergic reaction. A prescription-strength cortisone cream may also help. In some cases, a prescription antihistamine will be given. 
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.

A bedbug is a small, blood-sucking parasite that feeds on mammals and birds. Bedbugs belong to the insect family Cimicidae. Although there are several different species, the most common species associated with human bedbug infestations are Cimex lectularius and Cimex hemipterus. Bedbugs are considered a public health pest. There has been a recent resurgence in bedbug infestations worldwide, particularly in developed countries, including the United States.


Hi, I’ve been in my apartment for over 8 years. We just had new neighbors move into our building. Now me and my children are getting bit at night by something. So, this morning, I was sitting on the couch in my bedroom and a bug crawled up my pants’ leg. I captured it in a plastic bag. I believe it’s a bed bug but is there a way to submit a picture to you, so you can take a look? Thank you!

First, there should be a thorough inspection of areas that may be infested to identify bedbugs. Once a room is identified as infested, don't remove anything from the room unless it is sealed in a plastic bag. Furniture and items that you want to discard rather than treat should be bagged and destroyed so other people don't use them. Call your trash collection agency to arrange for an immediate pickup. Reduce the clutter in the room and discard any cardboard boxes as they can harbor bedbugs. Vacuum the area and seal the vacuum bag in a plastic bag and discard it.
We vacuum the carpets and bed almost everyday, wash everything every week and even sprayed every with bed bug spray. It seems to be working a bit cause they have lessened but I’m still getting bitten quite a bit. Of course they itch and I scratch a lot. I’ve been using the baking soda and water remedy (it works pretty well for me) but before I used to scratch until they bled and now I’m having trouble healing old bites.

I was at work and felt something crawling on my hip I brushed my hand and I thought it was a ant turned out to be a bed bug I was so freaked out I went to bathroom shook all my clothes out but now I feel so itchy I called my husband threw out my clothes washed my hair and stripped down in the back yard before coming in my house I was so freaked out I’m very nervous about returning back to work because of bed bugs I couldn’t sleep last night I was so itchy don’t know if its me r I got bite would I know that fast?
The creatures don't have wings and they can't fly or jump. But their narrow body shape and ability to live for months without food make them ready stowaways and squatters. Bedbugs can easily hide in the seams and folds of luggage, bags and clothes. They also take shelter behind wallpaper and inside bedding, box springs and furniture. The ones that feed on people can crawl more than 100 feet (30 meters) in a night, but typically creep to within 8 feet (2.4 m) of the spot its human hosts sleep, according to the CDC.

It’s been over a week since the first attack. I did not know where or when I got bit. Then a few days later in the night, I connected the dots. At 3 am I was up comparing bite pics on the internet and sure enough my fear was confirmed. I slept on the couch which is only 10 feet away in my studio with no problem. I did not see the actual bugs. I went and bought Steri-Fab spray–a gallon of it. I cleaned, vacuumed, sprayed the crap out of everything. I washed all my bedding in hot water. I threw out a throw rug. Sprayed baseboards again and around that side of the apartment.
Avoidance is the best means of preventing bedbug infestation.8 While traveling, sleeping quarters and bedding should be closely inspected for signs of bedbugs. Suitcases should be placed on metal racks away from walls and furniture. Frequent travelers might consider obtaining a portable heating unit for luggage and clothing (e.g., Packtite) as an additional precaution. Items at yard sales and secondhand stores should also be carefully examined before purchase.8  All potentially infested items should be sorted and sealed in plastic bags and removed only when ready to be disinfested (see Table 36 for instructions regarding effective care of infested items). Wearing long-sleeved nightclothes can minimize exposed skin, and although insect repellants have not been shown to be reliably effective, oil of lemon eucalyptus or diethyltoluamide (DEET) might help deter bites.44,45

you have to get the heat treatment on your house & wash & dry EVERYTHING you own in a very hot dryer some there maybe some help to pay for it if you own your home w a no interest loan or if you rent you better tell your landlord he needs to treat his whole property & i bet he wont be happy its very expensive my moms apt bldg gets a dog checking every unit & its $850 for her tiny one bedroom..i just read a house can be $1500 to $2000 theres a hair treatment too its a very hot comb that costs about $150 a person..you cant be going to peoples homes anywhere you go youre spreading the joy

No. Bed bugs are also pests in poultry operations, and they're known to parasitize bats. Some labs that study bed bugs rear them on guinea pigs and mice. The bugs might feed on cats and dogs. Fur is probably a barrier to them, but they could feed at any place on the body without fur. Bed bugs are not specific to humans, but they are adapted to parasitizing us.

So wear a face mask and just… bleach the crap out of your bed frame. Cover the mattress, repeatedly super heat your bedding and such, and bleach bleach bleach. MAKE SURE TO CHECK YOUR MATTRESS COVER. I did kill a few trying to hide in the zipper area. I picked out the crawlies with gloves and killed them, then repeatedly did a bleach scrub in case of any eggs. I do recommend the sticky traps a lot because if you keep your bed away from any walls or furniture, then the sticky traps will let you know if the bed bugs are coming from elsewhere.


I had bed bugs last June (I live in Chicago and apparently bed bugs are a huge problem here). I’m dreading going through the whole process of exterminating them again. Do you know of any other kind of bugs that bite during the end of winter? Could these bed bugs be from last year? Maybe it’s a new infestation?? I’m going crazy over here! I don’t know what to do
8 days ago my friend & i decided to crash at my grandmas house after a wild night out. in the morning we woke up in horror seeing how they freely crawled all over her mattress cover. Within the last 7 days, bite marks have been appearing all over my body, i am practically covered; as to my friend, well lucky her she has only 3 on her arm. The problem isn’t only that i have more bites than her but i believe i have an allergic reaction, the bites have massively grown in size. I do not know what else to try, Calamine doesn’t work, baking soda with water made it worse, Benadryl hasn’t done anything either. I am at a point where i am about to cry. The worst part is that in less than a month I am going on my first tropical vacation. I simply cannot handle the stress, i suffer from mild anxiety & these massive rashes have turned these 7 days into hell. I have stopped scratching because it seems to irritate the bites. Please help.
Prior to World War II, infestations of bedbugs were common; however, after the widespread introduction of the use of the insecticide DDT in the mid-20th century, bedbug infestations became much less common. The recent resurgence in infestations of bedbugs worldwide is thought to be related to several different factors, including the increase in international travel, dense urban living conditions, insecticide resistance, and new, ineffective pest control measures.
So I have had bedbugs before and I had tons of bites everywhere from my feet to my neck! This time im not exactly sure if I have bed bugs.. I came home one evening and notices bites on my inner arm and then on my forearm, the ones on my inner arm are out of place and scattered bites, the ones on my fore arm are 3 diagonal dots. I have checked my bed and box spring seeing as I have had them before but there is nothing there? Am I being paranoid or do I really have bed bugs?
In most infestations, consultation with a professional exterminator is advised because elimination is more likely to be effective if multiple pest management methods are used. These include monitoring devices, canine detection, clutter removal, vacuuming, heat or cold treatment, sealing cracks and crevices, and judicious use of nonchemical and chemical pesticides. Monitoring devices include moat-like devices (e.g., Climbup Insect Interceptor) that trap bedbugs ascending and descending furniture legs, and emitting devices that use carbon dioxide, heat, and/or chemicals (e.g., Nightwatch monitor) that attract and trap bedbugs. Specially trained dogs are reported to detect bedbugs with 97 percent accuracy and are able to differentiate live bedbugs and viable eggs from debris remaining from previous infestations.41 Vacuuming is a highly effective method for removing bedbugs, but not eggs because these adhere to surfaces.42 High-efficiency particulate air filters eliminate bedbug allergens and debris.42  Nonchemical treatments include petroleum jelly (which can be applied to legs of furniture to prevent bedbugs from ascending), heating, and freezing (see Table 36 for effective killing temperatures).

Our apartment is clean, but apparently this has little to do with it. We were told to put our dry clothes in the clothes dryer for 30 minutes at a high heat and bag them tightly, spray rubbing alchoha l92% to repel them from the bed , couch covers and seat cushions, as well as to dry our bedding, curtains, towels etc., and to remove the light covers from the plugs. They were reasonable (about$400 divided into monthly payments.)They will come twice, a month apart beginning two days from now, We’ve been vacuuming daily, and tightly securing debris. We were told that rubbing alcohol, sprayed in cushions and the bottom of shoes will repel them (92%). I was told that the most common place to pick them up is hospital and doctor’s waiting rooms. I write, and have a lot of boxed papers. I’ve emptied my drawers. I’m also not sure of what to do about my hanging paintings. I have enough problems right now, and just want this to end.
Thank you all for the advice I’m seeing on here. Hydrocortisone was doing nothing for these bites. I have a high tolerance for pain but these bites really made me want to cry. I tried the Veeno Oatmeal bath, Witch Hazel and the Aloe Vera and this is when I began to get relief. These bites were very uncomfortable. I still itch a little but the swelling has gone down tremendously. I keep the Aloe Vera and witch hazel handy for the itching.

Don’t forget that in some cases a person does not react to bed bug bites at all. It’s really not that easy to easily identify bed bug bites. Often a diagnosis of spider bite is given when the person really doesn’t know what is causing the lesion(s). Spider bites are often an over diagnosed condition. Also, a hot or warm dryer is much more useful than washing clothes in hot water. Certain studies have shown that some bed bugs will withstand the wash, but not the dryer.


We suggest if you are wanting to use any type of pesticide that you should hire a professional. Bed bugs often hide in places where pesticides can’t reach and pesticides can be very harmful if not used properly. If you are still wanting to treat bed bugs yourself we suggest using food or animal grade Diatomaceous Earth instead. Diatomaceous Earth is non-toxic and will dry out the bed bugs. Also here is a link to our 8-step approach to getting rid of the bed bugs. Please let us know if you have any other questions.
Thank God I don’t have to replace any of my furniture yet or I wouldn’t know what I would do, because my income is limited also…if the landlords were more cooperative in dealing with this the problem of bed bugs wouldn’t be a problem….I read something about bed frame posts to put on each foot of the bed and it keeps the bugs from entering your bed…also to use at least 5lbs. of Diatomaceous earth or perma guard, it’s a safe powder substance you spread all over your house, on rugs, cracks foundations etc. and this seems to kill them you leave it down for a few days..the cost is minimal as low as $10.00- $15.00. Well worth the investment, you can purchase it online, EBay or your local feed and supply store.

Also, we do have pets and a 10 year old living with us as well. 3 cats and a dog. They have been fine with the bleach smell, though it seems to be making one of my cats a little wild. A suggestion I have, if you try what we’re trying, is put the animals up until the KABOOM has dried, because, where as our animals are seemingly okay, it could still harm them. Luckily our cats are indoor/outdoor cats, so we can put them outside while we do it.


Here’s one for ya…I drive over the road truck. On Friday 8/13 it was miserably hot so I stayed the night in a reputable motel. I now have bed bugs in my truck!!!! I’m getting a new mattress but am going to tell them to wrap it and tape it real well until I get home and bomb my truck. Being such a small space I figure using an insect smoke bomb will work. Well, at least it better!!! I have tons of bites all over my ankles, feet, several on my face, on one arm and on both thighs. Yup, the itching sucks…

Adult bedbugs are reddish brown in color, flat, oval-shaped, wingless and approximately 4-5 millimeters in length. Immature bedbugs (nymphs) may be translucent or light tan in color and therefore very difficult to see. Bedbugs are often more red in color after feeding. Bedbugs are attracted by warmth, and they generally feed during the night, often just before dawn. They tend to feed every five to 10 days, though they can survive without feeding for several months. Bedbugs pierce the skin and inject saliva that contains anesthetics and anticoagulants into the host, which often make their bites painless initially. After feeding on the host's blood for several minutes, bedbugs will crawl back to their hiding place. They will generally try to hide and remain within close range of their warm-blooded host. Affected individuals may feel and see the consequences of the bedbug bite afterward, though many individuals will not develop any physical signs of a bite. Bedbugs do not transmit or spread human disease.


I have been suffering from these stupid bed bugs but i want to know if the baking soda mixture thing only cures the itchiness or make the spots disappear because i try as much as possible not to scratch it because it makes it expand. I am looking for something to make my skin color be maintained not to be having unwanted spots all over. I’m on the heating business to cure the bugs though. Thanks for the hints.
I have no idea what works…. all the benedryl, cortizone, calamine lotion, and any cream/ointment said that they help with insect bites DOES NOT work. Once you start scratching, it’s over, you are going to scratch until the cows come home. If I am able to the trick is not to scratch at all. The enzyme is only released when you scratch, unless you are highly allergic like the picture that is show above, and I thought I was allergic, guess not.
I don’t think my infestation is very extreme RIGHT NOW. i know for a fact they aren’t in or on the mattresses so that only leaves the crevices along the sides of the carpet. i got on my hands and knees to look but i still didn’t see anything. I KNOW THEY’RE THERE, WE HAVE THE BITE MARKS TO PROVE IT!!!!!! the little blood suckers are excellent at hiding.
We kept feeling something crawling on us when we sat on tge couch. Then tiny bites Started appearing. After months of trying various cleaning approaches, we contacted Terminex. Their inspector found two bedbugs in the seams of a chair in the bedroom , but nothing on the sofa. They charged me a thousand dollars and steam cleaned both the bed, chair and sofa. About 10 days later, we started getting bites again. Terminex came and “dusted” the areas thus time. This continued for a a few months and them the “inspector” from Terminex said they could fund no signs of the bugs rhe last few times and he thought misquitoes were probably biting us. It has been months now and the problem has worsened. Now I get horrible welts when bitten and we constantly look for tangible signs: excrement, bugs in tape, anything before we call a different extermination company but life has become unbearable. We can’t have guests over because we fear they’ll become infected. It has been and is a truly awful experience.
Turns out, C. lectularius is also forming a resistance to other insecticides, according to a study published online April 10, 2017, in the Journal of Economic Entomology. The researchers, from Purdue University, found that three out of 10 bedbug populations collected in the field showed much less susceptibility to chlorfenapyr, and five of the 10 populations showed reduced susceptibility to bifenthrin, according to a post on Entomology Today. The scientists defined "reduced susceptibility" as a population in which more than 25 percent of the begbugs survived after seven days of exposure to the particular insecticide.
Although most furnishings need not be discarded, in some cases this may be necessary. This is especially true of heavily infested beds, sofas and recliners where bugs and eggs often reside in hard-to-reach places. Consequently, pest control firms may recommend such items be discarded, especially when in poor condition. When infested items are discarded, bagging or wrapping them prevents dislodgement of bugs en route to the trash. 
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.
Within 20 of exposure I started coming down with bumps. They started to.on my forearms but now have spread to legs. My company sent a exterminator to my home to check to make sure I didn’t spread them to my home, my home declared bug free:). They sent me to employee health where I was put on strong antibiotic and cortisone like cream to put on wounds. They are red, cluster like itchy. Frustrating thing is I keep getting more. I am so itchy I can’t sleep. Could it be something different then bugs that I was exposed to? Just frustrated with continual bites
Hi please help me out Natasha! A few days ago I woke up at midnight to find 3 bites in a almost straight line and I was afraid that it was a bed bug my mom said that there was a chance of it being a misquito since I was outside all night long but I’m still getting this weird feeling that it could be bed bugs what do you think it is can you take a guess. Help!
Hi been getting bites since March. I have been to three doctors who all say the bites are not bed bug bites due to the pattern of the bites. This weekend I got bit again I have one on my leg and a two on my waistline. One of really big and the other are two small ones that are really red. I woke up in the middle of the night and saw a small bug on pillow and one on wall by bed and took a picture and from looking online looks like pic could be a bed bug or chigger. We have already checked the mattress a bunch and found no signs of bed bugs. Can I send you a pic so you can confirm what the bug might be?
A number of other symptoms may occur from either the bite of the bed bugs or from their exposure. Anaphylaxis from the injection of serum and other nonspecific proteins has been rarely documented.[5][10] Due to each bite taking a tiny amount of blood, chronic or severe infestation may lead to anemia.[5] Bacterial skin infection may occur due to skin break down from scratching.[5][11] Systemic poisoning may occur if the bites are numerous.[12] Exposure to bed bugs may trigger an asthma attack via the effects of airborne allergens although evidence of this association is limited.[5] There is no evidence that bed bugs transmit infectious diseases[5][7] even though they appear physically capable of carrying pathogens and this possibility has been investigated.[5][3] The bite itself may be painful thus resulting in poor sleep and worse work performance.[5]
Just came back from a hotel stay, have one VERY itchy bite on my wrist. I don’t know for sure that it is a bed bug bite butI haven’t unpacked my bags yet, so hopefully everything is safe. Right now I have an aloe and lidocaine gel over the bite, but when I get home I may try soaking it in tea bath. the tannin in black tea can also help with itching and swelling.
Just recently had my first experience w/ bedbug bites in Nicaragua. Hundred plus bites in one night and over a period of three days they became so inflamed, there were tiny blisters on each bite. These suckers snacked on me like I was an all you can eat buffet. I itched 4 days straight and finally went to a pharmacy there, which prescribed me acne creme. Worked, I guess, at least psychologically. But the bites kept festering more and more.
Since DDT was banned there has been an escaltion of bugs. Malaria is killing millions and now bed bugs are taking over. I am waiting for a exterminaor right now. Something is biting me and I cannot find out what it is. I know Benadryl itch stopping cream has been my salvation. I have order a few things from an online shopping network and wonder if we are getting these bugs from other countrys. I am stopping all shopping online. The only way I feel like something is on me is to take a shower. Where is the CDC on this problem.

you probably ALREADY HAVE THEM..you cant let people that you know have an infestation of blood sucking parasites in your HOUSE..im sure you already have them but a hot dryer does kill them yes but thats not going to protect you these are very easily spread they fall off their bodies or hair right into your house & if you have children with bedbugs in your home you most likely already have them..sometimes people have no idea they even have them the bites dont affect some people..other people after about 3 week get an allergy & thats why the bites swell like hives..they became allergic & that can be a dangerous allergic reaction
Individual responses to bites vary, ranging from no visible effect (in about 20–70%),[5][3] to small macular spots, to prominent wheals and bullae formations along with intense itching that may last several days.[5] The bites often occur in a line. A central spot of bleeding may also occur due to the release of anticoagulants in the bug's saliva.[4]
We had bed bugs two years ago and I was hyper allergic. I’ve been paranoid every since. This morning I woke up with five marks on my stomach and am now terrified. When I got bit before it was my hands arms or face but it was my stomach… I wear guys shirts so my stomach was definitely fully covered. There have been zero signs for two years and suddenly five marks on my stomach. Is this some sort of rash or did they suddenly come out of nowhere within a night?

When staying in a hotel, I check the bed before I bring the suitcase into the sleeping part of the room so that if I have to ask the manager for another room, then I haven't exposed my suitcase to the bugs. When settling in, I put my suitcase up on the suitcase stand or the desktop so that any bugs are less likely to crawl into it. An extreme measure would be putting the suitcase in the tub. If it's a porcelain tub, bed bugs would have a hard time crawling up it. It's also unlikely that they would randomly crawl up a tub, because it's not near the bed. But if I don't see bed bugs in the room when I inspect it, I just put my suitcase on the stand because I know the probability is really low that a bug is going to crawl up the stand and into my suitcase. I keep my clothes in the suitcase or hang them in the closet—I don't leave them on the floor because wandering bed bugs might crawl into them.
Last Saturday, I slept over my boyfriend’s house to be safe from that hurricane that came to NY. His house is pretty infested with them, but he bombed the room where I slept, and sprayed a whole lot of bug spray on and around his mattresses, did all his blankets and pillows, and yet I’ve either been bitten so much, that I can’t even tell if they are “breakfast, lunch, dinner” dots, or just rashes from a bad reaction to something. And the baking soda trick, to my surprise, didn’t work! Grrrrr!!!
Call your city or town health inpespector. In most major cities it is the landlords obligation to hire a an exterminator. In the case of bed bugs I believe there is more of an urgency and most city inspectors will come out within days, now that bb’s have reached epidemic levels not only in the U.S., but in many countries around the world. In some U.S.cities there are “lanlord/tenant agreements”, which are locally legal and binding contracts that state what the obligation of a landlord and tenant is, and most contain a clause which says that repairs, maintenance, etc.,which are landlords obligations, and what recourse a tenant has when the landlord refuses to repair or maintain his rental properties. In some cases, the tenant may pay for the repairs and deduct from the rent after following various steps first, such as, notifying the landlord via certified letter, prior to the tenant paying for said repairs. Please READ your lease and call your city or town’s health department or building inspectors first,as these ordinances may vary. You can always file a case in local claims court without an attorney,after paying for the repairs,if all else fails, and moving is not an option. I am not a lawyer, and this is not legal advice. I hope this helps. Bed bugs are a public health hazard. And not taken lightly by many local elected, or appointed officials. I hope this helps.
I have various skin lesions which might or might not be bed-bug bites–small, raised, sometimes red, sometimes itchy. The problem is I live right next door to a large park and get all kinds of insects in summer, may small enough to get through my window-screen. Also, I have Parkinson’s disease, and the meds I take for it can produce hives and itching as a side-effect. And, my bedding and mattress are all dark colored, so I likely would not see fecal stains or shed bed-bug skins.
We suggest if you are wanting to use any type of pesticide that you should hire a professional. Bed bugs often hide in places where pesticides can’t reach and pesticides can be very harmful if not used properly. If you are still wanting to treat bed bugs yourself we suggest using food or animal grade Diatomaceous Earth instead. Diatomaceous Earth is non-toxic and will dry out the bed bugs. Also here is a link to our 8-step approach to getting rid of the bed bugs. Please let us know if you have any other questions.

I just discovered the cause of my skin reaction this morning. Been spending a lot of time at a friends place and started to get red spots that were intense and itch. It just got worse and worse. The dermatologist did a biopsy and found no bacteria or virus. Skin scrapping found no fungus. It was a matter of finding out what was causing my skin to become so swollen I couldn’t see some of the bite marks. It only affected my legs, feet, arms, upper back, chest, neck, and shoulders. No midsection bites.
Bed bugs (Cimex lectularius) are small, flat, parasitic insects that only feed on the blood of humans and animals while they sleep. They are reddish-brown in color, about 1mm to 7mm in size, and can live for several months without a blood meal. Bed bugs are not known to spread diseases, but their presence can cause itching and loss of sleep. Excessive scratching can increase the chance of secondary skin infections. Bed bugs are found all over the world and the cleanliness does not determine the presence of bed bugs.
Until fairly recently, most people (and even pest control professionals) had never seen a bed bug. Bed bug infestations actually used to be very common in the United States before World War II. But with improvements in hygiene, and especially the widespread use of DDT during the 1940s and ‘50s, the bed bugs all but vanished. The pests persisted, however, in some areas of the world including parts of Africa, Asia, and Eastern Europe. Over roughly the past decade, bed bugs have made a dramatic comeback in the U.S.― they’re appearing increasingly in homes, apartments, hotels, health care facilities, dormitories, shelters, schools and public transportation. Other places where bed bugs sometimes occur include movie theaters, laundries, rental furniture, and office buildings. Immigration and international travel have contributed to the resurgence of bed bugs in the U.S. Changes in modern pest control practice, less effective insecticides ― and a decrease in societal vigilance ― are other factors suspected for the recurrence. 

Some pest control firms utilize specialized heating equipment to de-infest furnishings, rooms, and entire dwellings. The procedure involves heating up the infested item or area to temperatures lethal to bed bugs. Portable heaters and fans are used to gradually heat the air to about 120 - 130°F while monitoring with strategically placed sensors. By carefully controlling the temperature, bugs and eggs are killed wherever they may be without damaging household items. 
Prior to the mid-20th century, bed bugs were very common. According to a report by the UK Ministry of Health, in 1933, all the houses in many areas had some degree of bed bug infestation.[65] The increase in bed bug populations in the early 20th century has been attributed to the advent of electric heating, which allowed bed bugs to thrive year-round instead of only in warm weather.[66]
Reports of bedbugs can be found in the popular press and on hotel and travel review sites, and they appear to be making a comeback. The good news is that they typically do not pose serious health risks, even though their bites may be uncomfortable. These slides show you how to recognize bedbugs, know where they're hiding, and learn what to do to prevent getting bitten.
Encasing mattresses is one of many good parts of a solution, but it doesn't get rid of the infestation. There are going to be other bugs away from the mattress, hiding nearby. What mattress covers are good at is entombing the sometimes large number of bed bugs that can live on a mattress. And because the covers tend to be uniform in color and don't have a lot of seams that the bugs can hide in, it's easier to see the insects.
The first sign of a bed bug problem is obvious: the bed. After bed bugs feed on humans, they'll leave behind blood stains resembling small rust spots. These will usually be found near the corners and edges of the bed. Bed bugs also shed their skin, or molt, several times as they mature, so you may find their oval brown exoskeletons during your search.
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