Difference Between Bed Bugs and Dust Mites

Dust Mites vs Bed Bugs

It can be easy to confuse dust mites or bed bugs when you’re not sure which one has caused you an allergic reaction or an itch. Read further to learn about the characteristics and differences between dust mites and bed bugs.

Dust Mites

Dust mites are actually not insects, but are related to spiders. Dust mites feed on organic material like:

    • human and pet dander
    • skin cells
    • mold spores
    • leaves

Dust mites are most commonly found in mattresses, pillows and carpets but may also live in stuffed animals, upholstered furniture, bedding and curtains.

Bed Bugs

Bed bugs are small, flat, oval-shaped insects that feed on blood from humans or animals. Bed bugs can be found in mattresses, bed frames and bed linens, as well as furniture, curtains, and other fabrics.

Differences Between the Two

The size and shape of dust mites and bed bugs are completely different. Dust mites are about 0.2 to 0.3 mm in size, whereas bed bugs are between 4 and 7 millimeters. Bed bugs have six legs, whereas dust mites have only four.

In regards to diet, bed bugs are parasites as they feed on blood and dust mites consume organic materials. In order to distinguish between the two, look for their feces – if the fecal matter is black, it’s a sign of dust mites and the reddish-brown color of bed bug feces is an indicator of an infestation.

Dust mites may also be associated with allergic reactions such as asthma and rhinitis while bed bugs do not usually cause such reactions. If you’re facing an allergy problem, you should be able to tell if it’s due to dust mites or bed bugs.


Both dust mites and bed bugs can cause itching, irritation, and, in some cases, allergic reactions. However, now that you have the information on dust mites and bed bugs, it’ll be easier for you to identify which one is causing your discomfort.\

When it comes to pests in the home, it can be difficult to tell one from another. Two of the most common pests found in the house are bed bugs and dust mites. Though both can cause discomfort and health issues, there are some key differences between the two.

Bed bugs are a type of insect that feed on human blood, generally at night. They are small, wingless, reddish-brown bugs, usually no bigger than an apple seed. Bed bugs can hide in cracks and crevices in furniture, behind baseboards and wallpaper, and in the seams of mattresses and box springs. They suck blood which can cause itchy bumps on the skin, redness, swelling, and allergic reactions in some.

Dust mites, on the other hand, are microscopic creatures that feed on dead skin cells found in humans and animals. They are colorless, microscopic bugs that live in household dust, mattresses, pillows, and carpets. Dust mites cause allergies such as asthma, a stuffy nose, red eyes, and skin rashes.

The most obvious difference between the two insects is their size. Bed bugs are visible to the naked eye, while dust mites are microscopic. Another key difference is their diet. Bed bugs feed on humans, while dust mites feed on dead skin and dandruff. Bed bug bites can be itchy and cause irritation and redness, while dust mites are known to cause allergies. Lastly, bed bugs can spread diseases to humans, while dust mites do not.

In conclusion, bed bugs and dust mites are both common bugs found in the home. However, they differ in size, diet, biting effects, and the threat they pose to humans. Knowing the difference between them can help identify the type of pest and the best way to control it.

Also Read: Booklice in Bathroom

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *