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Bugs That Look Like Bed Bugs and How to Tell Them Apart

Are you losing sleep over the thought of bed bugs infesting your home? Are you constantly checking for signs of these pesky pests, but unsure if what you’ve found are actually bed bugs?

Don’t worry, you’re not alone. Bed bugs can be a major nuisance and cause serious anxiety, but the good news is that not everything that looks like a bed bug is one.

In this guide, I am going to help put your mind at ease by showing you how to distinguish between real bed bugs and their look-alikes.

Bugs That Look Like Bed Bugs and How to Tell Them Apart

So, What Exactly Are Bed Bugs?

Bed bugs are small, reddish-brown pests known for infesting various areas where people sleep or sit for extended periods.

They are typically flat with an oval-shaped body, allowing them to hide easily in cracks and crevices.

Appearance of Bed Bugs:

  • Color: Reddish-brown, becoming redder after feeding.
  • Shape: Oval-shaped when not fed; balloon-like and elongated after feeding.
  • Size: Approximately 5 to 7 mm in length, similar in size to an apple seed.

Due to their elusive nature, the signs of bedbugs may not be immediately apparent, and the first clue is often the presence of bed bug bites.

These bites appear as small, red, itchy welts that can cause discomfort.

To identify bed bugs in your space, look for these indicators:

  • Physical Bugs: Check seams of mattresses, bed frames, and other furniture.
  • Fecal Spots: Small, dark spots that may bleed on fabrics like a marker.
  • Exoskeletons: Shed skins from growing nymphs.
  • Eggs: Tiny, pearl-white eggs in secluded spots.

When comparing bugs that look like bed bugs, key differences are in the body shape, leg length, and antennae size.

You need to correctly identify these insects because treatment methods vary significantly among different pests. 

Why Do We Need To Be Bothered About Bed Bug Infestations?

Bed bug infestations are a significant concern for several reasons. Firstly, your home should be a place of comfort and safety, but bed bugs compromise that by hiding where you are most vulnerable.

These insects typically lurk in mattresses, bedding, and furniture, waiting to feed on you during the night.

Infestations can be identified by dark spots on your mattress, which may be bed bug excrement, along with shed skins or the bugs themselves.

Noticing bites on your skin, often in a line or cluster, can also be a telling sign.

To manage an infestation, consider the following steps:

  • Examine your mattress and bedding: Look for the signs mentioned, as they are indicative of a problem.
  • Apply heat: Bed bugs are susceptible to high temperatures. Washing and drying your bedding at settings above 122 °F can kill them.
  • Vacuum regularly: This can remove any bed bugs or their eggs from your floors or furniture.
  • Seek professional help: Sometimes, the infestation may be beyond your ability to control, and consulting a pest control professional is necessary.

Common Bugs That Look Like Bed Bugs

Common Bugs That Look Like Bed Bugs

In addressing the issue of insect identification, it’s important to recognize that several species closely mimic the appearance of bed bugs.

Your ability to differentiate these look-alikes is crucial in effectively managing any potential pest situation.

Bat Bugs

Bat bugs are close relatives of bed bugs. They share a similar oval shape and coloring, making them tough to distinguish. However, bat bugs primarily feed on bats and will bite humans only if their preferred host is unavailable.

Carpet Beetles

Carpet beetles are oval-shaped and can exhibit various colors including black, white, and orange. Unlike bed bugs, which feed on blood, carpet beetles have an appetite for fabrics and can cause damage to your belongings.

Spider Beetles

The unmistakable spider beetle can be identified by its long legs and rounded abdomen, resembling a spider. These beetles range from red-brown to almost black and are nocturnal, which can lead to confusion with bed bugs.


Ticks belong to the arachnid family and are often darker with eight legs—two more than bed bugs. They latch onto hosts for a blood meal and are capable of spreading diseases, making their identification critical.

Swallow Bugs

Swallow bugs resemble bed bugs in appearance, behavior, and habitat, leading to misidentification when they infest human living spaces.


Booklice are tiny insects that may be mistaken for immature bed bugs, as they are similar to bed bugs. However, they are lighter in color and feed on mold or fungi, often found in damp environments, rather than feeding on blood.


Fleas are small and laterally flat, jumping easily from host to host. They possess strong hind legs and bite to feed on blood, often causing itchy marks that can sometimes be misinterpreted as bed bug bites.

Cockroach Nymphs

Young cockroaches, or nymphs, may occasionally be confused with bed bugs. They typically have a more cylindrical body shape and can be recognized by the two prong-like projections at their rear.

bed bug identification tips

Top Tips On How To Identify Bed Bugs In Your Home

Identifying bed bugs starts with recognizing their life stages and signs of their presence. Bed bugs go through several life stages: egg, nymph (young bed bug), and adult.

Below are key indicators to help you identify these pests:

  • Eggs: Bed bug eggs are tiny, about the size of a pinhead, pearl-white, and have a curved shape. They are often found in clusters within tight cracks or crevices.
  • Nymphs: Young bed bugs are smaller than adults, translucent, or light yellow if unfed, and become redder after feeding.
  • Adult Bed Bugs: Adults are roughly the size of an apple seed, with a flat, oval body if unfed, and a balloon-like, reddish-brown body after feeding.

To check for these insects, follow these steps:

  1. Inspect near sleeping areas, including mattress seams, bed frames, headboards, and nearby furniture. Use a flashlight to aid your search.
  2. Look for droppings that appear as small, dark spots, often like a marker dot.
  3. Spot insect eggs, which may be isolated or in clusters, often in tight, hidden locations.
  4. Pay attention to bloodstains on your sheets, pillowcases or pajamas, which can indicate crushed bed bugs.

Identification Tips:

  • Smell: A sweet, musty odor can be a sign of a bed bug infestation.
  • Sight: Actual sighting of live or dead bed bugs.
  • Touch: Unexplained skin rashes or the feeling of things crawling can suggest bed bugs are feeding at night.

How To Know Which Insect Eggs Belong To Bed Bugs?

How To Know Which Insect Eggs Belong To Bed Bugs?

When examining insect eggs in your home, distinguishing between those of bed bugs and other insects is critical to tackling an infestation effectively.

Bed bug eggs are approximately 1mm in size, making them visible to the naked eye.

Here are characteristics to help you identify bed bug eggs:

  • Size: Bed bug eggs are about the size of a pinhead, roughly 1mm.
  • Color: They tend to be pearly white, especially when freshly laid.
  • Shape: The eggs appear oval, elongating as the nymph grows inside.
  • Location: Typically found in cracks or crevices close to the host’s resting area, like mattress seams.

Contrastingly, flea eggs are smaller, around 0.5mm, and more likely to be found in your pet’s bedding. Meanwhile, termite eggs are not commonly visible as they are kept inside the nest away from light.

To further differentiate, consider these points:

  • Lice: Usually attach their eggs, called nits, to individual hair strands.
  • Mites/Termites: These lay much smaller eggs that are often not seen without magnification.
  • Psocids: Commonly mistaken for bed bug nymphs but can be identified by their winged adult form.

Remember that eggs alone might not distinguish an infestation—also look for live bugs, larvae, cast skins, and fecal spots.

Bites or rashes on your skin, which can resemble those from scabies, chiggers, or a fungal infection, often indicate a problem but cannot conclusively identify the pest without visual evidence of the insects or eggs.

You can also use a flashlight and a magnifying glass to inspect common hiding spots meticulously.