What Do Bed Bugs Look Like?
Adult bed bugs are small, flat, oval-shaped insects that are generally brown to reddish-brown in colour. They are around the size of an apple seed when fully grown, while younger bed bugs can be much smaller and harder to see.
Because bed bugs are excellent at hiding, you may never see the insects themselves during the early stages of an infestation. Instead, homeowners often notice other warning signs first.
Understanding the signs of bed bugs can help you know when it is time to investigate further.
1. Unexplained Bites or Itchy Marks
One of the most commonly noticed signs of bed bugs is waking up with unexplained itchy bites.
Bed bug bites can appear as small red marks and may occur in clusters or lines. They are commonly found on areas of skin that are exposed while sleeping, such as the arms, legs, neck and shoulders.
However, bites alone are not enough to confirm a bed bug infestation. Other insects can cause similar reactions, and some people may not react noticeably to bed bug bites at all.
If you are regularly waking up with unexplained bites, it is worth checking your sleeping area for other signs.
2. Small Blood Spots on Your Sheets
Have you noticed tiny reddish or rusty-coloured marks appearing on your bedding?
Small blood spots can sometimes be a warning sign of bed bugs. They may occur if a bed bug is accidentally crushed while you are sleeping or after feeding.
These marks can be easy to dismiss as ordinary stains, particularly if there are only one or two.
If new spots continue appearing on your sheets without an obvious explanation, inspect your mattress and bed frame carefully.
3. Dark Spots Around Your Mattress
Another sign homeowners can easily miss is small dark or rusty-coloured spots around the mattress.
These may be bed bug faecal marks and can sometimes look like tiny dots made by a pen or marker. Look particularly closely around mattress seams, folds, piping and underneath the mattress.
You should also check the bed frame, headboard and other areas immediately surrounding the bed.
4. Tiny Pale Eggs or Eggshells
Bed bug eggs are extremely small and can be difficult to spot without close inspection.
They are generally pale or whitish and may be found in cracks, crevices and other concealed areas close to where bed bugs are hiding.
You may also notice tiny shed skins left behind as immature bed bugs grow.
Finding eggs, eggshells or shed skins is a strong reason to investigate further, particularly if you have noticed other warning signs.
5. A Musty or Unusual Odour
Larger bed bug infestations can sometimes produce a distinctive musty or slightly sweet smell.
However, odour is not usually one of the first signs homeowners notice, and it can be difficult to identify unless an infestation has become established.
If you notice an unusual smell in your bedroom alongside bites, blood spots or dark marks, it is worth checking for additional signs of bed bugs.
6. Finding Bed Bugs in Unusual Places
Despite their name, bed bugs are not restricted to mattresses.
They can hide in a variety of small cracks and concealed spaces, including:
- Mattress seams and underneath mattresses
- Bed frames and headboards
- Bedside furniture
- Carpet edges
- Cracks and crevices in walls or furniture
- Behind loose wallpaper
- Around electrical outlets
- Inside upholstered furniture
This is one reason bed bug infestations can be difficult to identify and eliminate.
If you find a small brown insect that you believe could be a bed bug, avoid immediately throwing away furniture or mattresses. Correct identification is important before deciding on a treatment approach.
Why Bed Bugs Are So Easy to Miss
Bed bugs are particularly difficult to detect because they are nocturnal and spend much of their time hiding.
An infestation can also start with only a small number of insects. At this stage, there may be few visible signs, making it easy to assume an occasional bite or mark is unrelated.
Bed bugs can also spread beyond the bedroom. If an infestation becomes established, they may move between rooms or be transported to other areas on clothing, luggage, bedding and furniture.
For these reasons, early investigation is important when several warning signs appear together.
Where Should You Look for Bed Bugs?
If you suspect bed bugs, start by carefully inspecting the areas where people sleep or spend extended periods of time.
Pay close attention to:
- Mattress seams and edges
- Underneath the mattress
- Bed frame joints
- Headboards
- Bedside tables
- Upholstered furniture
- Cracks and crevices
- Carpet edges
- Use a torch to help inspect darker areas and avoid disturbing potential hiding places unnecessarily.
Remember that not seeing a bed bug does not necessarily mean there is no infestation. They are very good at remaining hidden.
What Should You Do If You Find Signs of Bed Bugs?
If you discover several potential warning signs, it is best to act promptly rather than waiting for the problem to become more obvious.
Avoid relying solely on DIY sprays or treating individual areas without first determining the extent of the infestation. Bed bugs can hide in places that are difficult to reach, meaning an incomplete treatment may allow the problem to continue.
Professional pest control can help identify the pest and determine an appropriate treatment strategy.
For homeowners in Northland, EnviroPro provides professional pest control services across the region.
Can You Prevent Bed Bugs?
While it is not always possible to prevent bed bugs completely, there are steps you can take to reduce the risk of bringing them into your home.
When travelling, check hotel beds and furniture before unpacking and avoid placing luggage directly on beds where possible.
After travelling, inspect luggage and clothing before putting everything away. Washing and drying clothing appropriately can also help reduce the chance of accidentally bringing bed bugs home.
It is also a good idea to be cautious when purchasing second-hand mattresses, beds and upholstered furniture.
Don't Ignore the Early Warning Signs
Bed bugs rarely announce themselves with an obvious infestation. In many cases, homeowners notice small clues first — an unexplained bite, a tiny blood spot on the sheets or dark marks around the mattress.
One sign on its own does not necessarily mean you have bed bugs. However, several signs occurring together should not be ignored.
If you are concerned about possible bed bugs, contact EnviroPro to discuss your situation and find out what professional pest control options may be suitable.
You can also request a pest control booking to arrange professional assistance.
With the right approach, identifying and addressing a pest problem early can help prevent it from becoming a much bigger issue.
Keep Your Home Pest Free
Bed bugs are only one of the many pests that can affect homes and businesses across Northland. Regular inspections and prompt treatment can help keep unwanted pests under control.
For ongoing protection, explore EnviroPro's PestFree pest management service and find out how a proactive approach can help protect your property.
PestFree - the choice is easy.
0800 SCREAM or 09 438 9227