Bed bug bites on your body look like itchy, red, swollen bumps, often in a line or zigzag pattern (like "breakfast, lunch, and dinner") on exposed skin, though they can also look like pimples, hives, or blisters, sometimes with a dark red spot in the center. Reactions vary, appearing on lighter skin as red bumps and on darker skin as violet or brown marks, and may take hours or days to show up.
Bites on your body: If you have bedbugs, you're likely to have bites. Bedbug bites usually cause itchy welts. These welts usually appear in a zigzag pattern as show in the photo below.
To know if you have bed bugs, look for itchy bites (often in rows on exposed skin), reddish or dark spots (feces) on bedding, rust-colored stains, tiny pale eggs or shed skins (exoskeletons), and inspect mattress seams, bed frames, and furniture for the actual bugs, which are small, flat, and reddish-brown. A musty, sweet smell can also indicate a severe infestation, according to the Better Health Channel and SA Health.
If you are allergic to bed bugs and fleas, these insects' bites can cause localized reactions (limited to one area of the body) such as hives or rash. The affected area may also swell, and a blister may appear. Scratching the blister and the affected area may lead to infections.
Bed bug bites can also lead to anaphylaxis, a rapid-onset, full-body allergic reaction which causes symptoms such as: Feeling warm, flushed, and/or dizzy, which can lead to fainting. Gastrointestinal issues like vomiting, diarrhea, and/or nausea.
Three key signs of bed bugs are itchy bite marks (often in rows on exposed skin), dark spots (fecal stains) or blood spots on bedding and mattresses, and finding the bugs themselves, their tiny eggs, or shed skins in mattress seams, bed frames, and furniture crevices.
Bed bugs dislike strong scents like lavender, peppermint, tea tree oil, and eucalyptus. These natural aromas can deter bed bugs by creating an environment they find unpleasant, though they're not guaranteed to eliminate an infestation. Using essential oil sprays or sachets can help as a preventive measure.
Biting zones
They don't usually walk on the body, but bite from sheets or mattresses. The areas accessible to bedbugs, and where most bites can be found, are mainly the back of the arms, the hips, the back of the legs, the lower back…
Their flat shape enables them to readily hide in cracks and crevices. Bed bugs cannot fly. Bed bugs hide during the day in dark, protected sites. They seem to prefer fabric, wood, and paper surfaces.
Common pests mistaken for bed bugs include bat bugs, carpet beetles, cockroach nymphs, booklice, and fleas, all sharing similar small, brownish appearances but differing in key features like jumping (fleas), body shape (cockroach nymphs), or habitat (bat bugs, swallow bugs). While some, like fleas and mites, bite, others like carpet beetles and booklice don't, making correct identification crucial for proper treatment, which often involves professional help.
High heat (steam, hot dryer) and some contact sprays like rubbing alcohol or specific low-toxicity sprays kill bed bugs and their eggs instantly, but complete eradication requires persistent treatment like vacuuming, sealing cracks, using diatomaceous earth (DE), and washing items at high temperatures. While chemicals work, heat is highly effective, killing bugs in all life stages on contact, especially when temperatures reach 60°C (140°F) or higher, according to health.vic.gov.au and myhealth1st.com.au.
Many people cannot feel bed bugs crawling due to their quiet, swift movement and small size. Skin sensitivity varies; some individuals might notice a slight tickling or itching, while others may feel nothing. Bed bugs are nocturnal, often hiding during the day, making detection by crawling sensation less likely.
Showering can help remove any bed bugs present on your skin temporarily, as water and soap can disrupt their ability to cling to surfaces. However, showering alone is not sufficient to eliminate a bed bug infestation, as these pests primarily reside in hidden cracks and crevices within your home.
Early signs of bed bugs include itchy bites in lines or clusters, rusty or dark spots on bedding (fecal stains), tiny pale eggs or shed skins in mattress seams, and a sweet, musty odor; you need to inspect mattress seams, bed frames, and furniture for these physical clues, as bites alone aren't always definitive.
Inspect Pillow Seams and Crevices
Bed bugs love to reside in tight, dark spaces. This makes pillowcase seams and crevices inviting hideouts.
The adults can easily be seen with the naked eye. Adult bed bugs are reddish brown in color, wingless, and are about the size of an apple seed. Immature bed bugs (there are 5 immature or nymphal instar stages) can also be seen with the naked eye but they are smaller than adults, and translucent whitish-yellow in color.
Bed bugs do not go away on their own. They rely on human blood and hide in tight spaces, making natural elimination impossible. Without treatment, infestations usually get worse over time. They can't escape or leave by themselves, and their populations grow quickly.
They are nocturnal parasites, which means they rest during the day and are active at night. However, bedbugs are opportunistic and will bite in the day, especially if starved for some time. They feed on the blood of humans.
Technically, bed bugs are unlikely to live on the clothes you're wearing, but they can quickly take up residence on items in a suitcase, and even what's in your drawers or on your floor. You should always launder items after returning from a trip, but will washing clothes kill bed bugs or just reduce the population?
However, they are not as effective as professional bed bug control solutions and can often push bed bugs into areas they may not have been found otherwise.
No scientific evidence suggests that VapoRub (Vicks VapoRub) can keep bed bugs away. While some people believe that the strong smell of VapoRub might repel bed bugs, there is no reliable data to support this claim. Simple home remedies like VapoRub are unlikely to control an infestation effectively.
Because bed bugs are attracted to warmth where they're most likely to find their food source, using various methods to heat the suspected infected areas could be helpful. Try heating your bed (or any infected area) with a steamer, blow dryer, or heater to bring bugs out of hiding.