How to Identify Bed Bug Bites
Bed bug bites can look a lot like mosquito bites, flea bites, hives, or a rash, so the bites alone do not prove you have bed bugs. The best clue is a mix of skin symptoms and signs in the sleeping area, especially if the bites showed up after a night in bed, on a couch, or while traveling.
Most bed bug bites are itchy, red, and frustrating, but they usually do not require emergency medical care. The bigger problems are scratching, poor sleep, and the stress of not knowing for sure what caused them. If you already know bed bugs are the source, see our guide on how to get rid of bed bugs.
Identifying Bed Bug Bites
Start with the bite pattern, then look for signs of bed bugs nearby. CDC notes that bed bug bites may not appear right away, and the University of Minnesota points out that skin reactions alone are not enough to confirm bed bugs, so it helps to look at both your skin and your room before you assume.
Bed bug bite pattern:
This line of bites may indicate you have bed bugs.
Bed bug bites often show up in small groups, rows, or zigzag clusters. That pattern is common enough to raise suspicion, especially when the bites appear on skin that was exposed while you slept.
A pattern alone is still not proof, but it is one of the most common clues. See more bed bug bite pattern pictures.
Bed bug welts:
A bed bug rash with red swollen bites shown in a cluster is another indication.
Bed bug welts can be red, swollen, itchy, and easy to confuse with mosquito bites. They often appear on the face, neck, arms, and hands, but reactions vary a lot from person to person, and some people barely react at all.
Bed bug rash:
A Bed bug rash, such as this girls neck, may indicate an infestation.
Some people get a more scattered rash or larger irritated patches instead of a few distinct bumps. Scratching can break the skin and make infection more likely, so try not to keep rubbing the area. See more bed bug bite rash pictures.
Presence of bed bugs:
These fecal spots and sticky eggs may be a sign you have a bed bug infestation.
Bites become much more convincing when you also see signs of bed bugs nearby. Live bugs, shed skins, eggs, and dark fecal spots around the mattress or bedding are much stronger evidence than bites alone.
If you see live bed bugs, their sticky rice like eggs or their shed skins as in the photo above, any bites you have are much more likely to be from bed bugs.
Bed bug excrement: Bed bugs leave behind small black or brown fecal spots (droppings) on mattresses, sheets, pillowcases, mattresses, or other areas of your bedding. If you see these spots along with bites, it is another strong clue that bed bugs may exist in your home.
See our bed bug infestation signs and pictures guide.
Bed bugs usually feed at night, and most people never feel the bite when it happens. CDC says bite marks can show up from one to several days later, and in some people they can take longer to appear.
Delayed reaction:
Because the reaction can be delayed, people often blame the wrong hotel, room, sofa, or night of sleep. That delay is one reason bed bug bites are so easy to misread at first.
Skin reactions:
Reactions vary widely. Some people get only small itchy bumps. Others develop larger welts, a rash, blisters, hives, or almost no visible marks at all.
If you react severely to bites, seek medical attention immediately.
Compare your skin with our photo guide showing bed bug bite pictures on different people.
See more bed bug bite pictures on our photo page.
Treatment for Bed Bug Bites
Most bites can be managed with simple home care. Wash the area with soap and water, use a cold compress to reduce swelling, and try not to scratch. If bites are severe or not improving, see a doctor. For a full list of home remedies and visitor-reported treatments, see our page on how to treat bed bug bites.
When to See a Doctor
In most cases, bed bug bites can be treated at home. However, it is smart to seek medical attention if you experience any of the following:
- Signs of infection: If the bite area becomes red, swollen, and warm to the touch, or if you develop a fever, you may have an infection.
- Severe allergic reactions: Trouble breathing, tightness in your chest, or swelling of the face or tongue may indicate an allergic reaction, and you need to seek immediate medical help.
- Many bites, blisters, or swelling that is getting worse instead of better.
- Sleep loss, anxiety, depression, or other emotional symptoms that are becoming hard to manage.
Emotional Symptoms from Bites
Woman showing emotional symptoms of dealing with bites.
Bed bug bites can affect more than your skin. CDC notes that some people deal with insomnia and anxiety after repeated bites, and many readers describe that same cycle of poor sleep, stress, embarrassment, and constant checking.
People react differently to these situations, but common emotional effects can include:
- Anxiety: It’s natural to feel anxious when dealing with bed bugs, as they can make your personal space feel invaded and unsafe. The thought of bed bugs can make it difficult to relax, causing anxiety levels to rise.
- Stress: Dealing with bed bug infestations can be very stressful, as it may involve cleaning, laundering, and seeking professional help to eliminate the pests. This added stress can exacerbate any feelings of discomfort or unease.
- Sleeplessness: Worries about bed bugs might make it hard for you to sleep, leading to sleep deprivation and further emotional distress.
- Embarrassment: Some people might feel embarrassed about bed bugs, thinking it’s a sign of uncleanliness or poor hygiene. Please know that bed bugs can infest even the cleanest of environments, even hospitals, and it does not reflect your cleanliness or character.
- Frustration: Dealing with bed bug bites and infestations can be a long and frustrating process, which can take an emotional toll as you work to resolve the issue.
- Fear: Some individuals may develop a fear of being bitten again, making them hyper-aware of their surroundings and hesitant to sleep in unfamiliar environments. This fear can show up as checking bedding, furniture, and luggage, especially when traveling or staying in hotels.
- Helplessness: Dealing with a bed bug infestation might leave you feeling helpless if the situation is not improving despite your best efforts. This can be emotionally draining and may affect your overall well-being.
- Depression: In some cases, the combination of anxiety, stress, sleeplessness, and other emotional symptoms may lead to feelings of sadness or depression.
Beth Shares Her Depression from Bed Bug Bites
Beth M:
Do these bites make anyone else hopeless and suicidal? Even after countless treatments of our beds and linens every morning, I wake up with 20-30 new bites. I react extremely strongly to them, they can swell as big as a half dollar, and they itch so badly that I often rip them open, leaving them prone to infection.
I’m now diagnosed as anemic, which the doctor is sure is because of the number of bites…they are eating me alive…and killing me.
My husband and I have shared parenting with our exes. His ex won’t let the kids come home anymore because they get bitten. This morning I looked over at my daughter, and she was covered in red welts — I counted 30 on her back alone! — and I had to send her to her dad’s because, in good conscience, I can’t let them eat her too.
I know when you get infested with these, the bedding and mattresses all have to go. We are barely scraping by as it is, and we have a bed for each kid no matter how often they come to see us — including ours; that’s seven mattresses and bedding sets.
Our landlord is not returning our calls, and although I know that he is responsible for not treating the problem, which (per neighbor reports) the previous tenants had, too, the lawyer wants $500 to even send a letter, let alone go to court. And I keep thinking that even if we go to court and win, the courts will make him treat the apartment…not replace its furniture.
So…we sleep on floors with newspapers? I don’t get to see our kids; I can’t protect them from the little monsters; my own body is being eaten alive; the constant itching and scratching are embarrassing, as is the fact that I have bites and scars in visible places and that my blood no longer clots properly, so if I get a paper cut, I’ll be bleeding a good half hour.
We’ve sprayed, washed, and dried, and the bites keep coming; I’ve used prescription-strength cortisone cream, Benadryl (which makes me tired and stupid at work), Zyrtec, Aveeno shower soap, and even used my dog’s anti-itch shampoo.
And I am still itching till they bleed, scarring, and finding new ones every day.
I just…a part of me has lost hope that there will be an escape, and I’m so depressed I just want to go to sleep and not wake up. I wondered if you all felt hopeless too, and how did you cope?
Remember, these feelings are a human response to a stressful infestation. You are not overreacting, and you are not alone. If bites or the fear of bites are affecting your mood, sleep, or ability to function, reach out to a doctor or mental health professional as soon as possible and talk with someone you trust.
Know that overcoming an infestation and restoring your peace of mind is possible. See our page on how to get rid of bed bugs.