
Think you have bed bugs? Many homeowners actually discover carpet beetles instead. Learn the key differences between bed bugs, carpet beetles, bites, signs, and when it’s time to schedule an inspection.
Finding small insects or unexplained skin irritation in your home can be alarming. Many people immediately assume they have bed bugs, but that’s not always the case. At ECO Bed Bug Exterminators, we’ve performed countless inspections where homeowners were convinced they had bed bugs, only to discover the problem was actually carpet beetles.
Although both pests can be found in bedrooms, they behave very differently, require different treatments, and leave different signs behind. Understanding those differences can help you decide what steps to take next.

What Are Bed Bugs?
Bed bugs are small, reddish-brown insects that feed exclusively on blood, usually while people are sleeping. They typically hide close to where people rest, including:
- Mattress seams
- Box springs
- Bed frames
- Headboards
- Nightstands
- Upholstered furniture
- Cracks and crevices near the bed
Because they feed on blood, bed bugs leave behind specific evidence that trained inspectors look for during an inspection.

What Are Carpet Beetles?
Carpet beetles are small insects that feed on natural materials such as wool, feathers, silk, fur, pet hair, lint, and other organic fibers. Unlike bed bugs, carpet beetles do not feed on people.
The larvae are covered with tiny hairs that can cause skin irritation in some individuals. This reaction is often mistaken for bed bug bites.
Adult carpet beetles are commonly found near windows because they are attracted to light.
Bed Bugs vs. Carpet Beetles: Quick Comparison

Can Carpet Beetles Cause Skin Irritation?
Yes.
Although carpet beetles do not bite, some people develop an allergic reaction when their skin comes into contact with the tiny hairs left behind by carpet beetle larvae.
These reactions can resemble insect bites, making it easy to mistake them for bed bugs. Because skin reactions can have many possible causes, it’s important not to rely on skin irritation alone to determine whether bed bugs are present. If you have persistent or concerning skin symptoms, consult a healthcare provider or dermatologist.

Signs of Bed Bugs
Common signs include:
- Live bed bugs
- Tiny white eggs
- Black fecal spots
- Shed skins
- Blood spots on bedding
- Multiple bugs hiding around the bed

Signs of Carpet Beetles
Common signs include:
- Small shed larval skins (exoskeletons)
- Tiny larvae with bristly hairs
- Damage to wool, clothing, rugs, or upholstered items
- Adult carpet beetles near windows
- Larvae behind headboards, under furniture, in closets, or along baseboards
Why People Confuse Them
Many homeowners contact us because they wake up with unexplained skin irritation and immediately suspect bed bugs. During an inspection, however, our technicians sometimes find carpet beetle exoskeletons instead of any evidence of bed bugs.
That’s why a thorough inspection is important before deciding on a treatment plan. Treating for bed bugs when the actual issue is carpet beetles—or another cause entirely—can waste time and money.
When Should You Schedule an Inspection?
If you’re experiencing unexplained bites or skin irritation but haven’t found clear evidence of bed bugs, a professional inspection can help identify what’s actually causing the problem.
An inspection may help determine whether the issue involves:
- Bed bugs
- Carpet beetles
- Another household pest
- No evidence of an active bed bug infestation
Identifying the correct issue first allows you to choose the most appropriate next steps.
Frequently Asked Questions
Can carpet beetles bite?
No. Carpet beetles do not bite or feed on people. However, some individuals may experience skin irritation from the hairs on carpet beetle larvae.
Do carpet beetles live in beds?
They can occasionally be found around beds, especially if natural fibers, dust, lint, or pet hair are present. Unlike bed bugs, they are not dependent on beds for food.
Can I have both bed bugs and carpet beetles?
Yes. Although uncommon, it’s possible for both pests to be present in the same home. A professional inspection can help determine what evidence is actually present.
Should I throw away my mattress?
Not necessarily. A mattress usually does not need to be discarded simply because bed bugs or carpet beetles are suspected. The right approach depends on the inspection findings.
Need Help Identifying the Problem?
If you’re unsure whether you’re dealing with bed bugs or carpet beetles, ECO Bed Bug Exterminators can help. Our inspections are designed to identify evidence of bed bug activity and help you understand the next steps based on what is found.










