Quick comparison
| Bed bugs | Fleas | |
|---|---|---|
| Size | 1 to 7 mm, about the size of Lincoln's head on a penny for adults (CDC) | 1 to 3 mm (NPIC) |
| Shape and color | Flat, oval, reddish-brown, wingless (CDC) | Flattened side to side, dark brown, wingless (NPIC) |
| How they move | Crawl only; they can't jump or fly (OSU) | Jump, sometimes 8 to 10 inches (Purdue) |
| Where they live | Mattress seams, box springs, bed frames, headboards, cracks near the bed (CDC) | On the animal, plus carpet, furniture and pet bedding where eggs fall off (NPIC) |
| Where bites show up | Skin exposed while sleeping: face, neck, arms, hands (WA DOH) | Mostly ankles and lower legs (Purdue; WA DOH) |
| Need a pet? | No. They feed on people. | Usually there's a pet, rodent or wildlife host involved (NPIC) |
Can bed bugs jump like fleas?
No. Bed bugs can't jump or fly, and they aren't closely related to fleas (Ohio State University). If a tiny brown bug springs off your sock or your dog, it's almost certainly a flea. If it crawls slowly along a mattress seam or headboard, think bed bug and compare it with our bed bug identification photos.
Flea bites vs bed bug bites
The two can look alike. The CDC says bed bug bites look similar to mosquito or flea bites, a slightly swollen red area that may itch (CDC). A few differences help:
- Location. Flea bites tend to be around the ankles; bed bugs bite any exposed area while you sleep (WA DOH).
- Pattern. Bed bug bites often show up in rows or groups, and new ones appear after you sleep (OSU).
- The center. Washington's Department of Health notes a single bed bug bite is similar to a flea bite except there's no red spot in the center (WA DOH). Purdue describes flea bites as an itchy red bump with a single puncture point at the center (Purdue).
- Timing. Bed bug bites may not show up for one to several days, and in some people up to 14 days (CDC). About 3 in 10 people don't react to bed bug bites at all (OSU).
None of these is proof on its own. More on reading bites in bed bug bites vs mosquito bites.
I don't have pets. Can it still be fleas?
It can, but it's less likely. NPIC notes that rodents and wildlife can bring fleas into a home, so fleas with no pets can point to animals in an attic or crawlspace (NPIC). If you have no pets and the bites are on your arms, neck or face after sleeping, check the bed for bed bugs first.
How to check: a 10-minute look
- Check the bed. Look along mattress seams, box spring edges, the bed frame and headboard for live bugs, shed skins and rusty or dark spots (CDC). Our signs of bed bugs guide shows what to look for.
- Check the pet. Run a flea comb through your pet's fur and drop anything you catch into soapy water (NPIC).
- Check the floor. Flea eggs and larvae end up in carpet, furniture and pet bedding (NPIC).
- Save a specimen. Tape or a sealed bag works. A bug you can show a professional settles the question faster than any bite photo.
Why it matters which one you have
The treatments are different. Flea control focuses on the pet and the living space together: treating the animal with your vet, vacuuming, washing pet bedding on high heat, and targeted products with insect growth regulators (NPIC). Those steps won't fix bed bugs, which hide in and around the bed and are hard to control even for professionals (NPIC bed bugs). See heat treatment vs Aprehend vs chemical spray for how bed bug treatments compare.
The Bed Bug Experts does not treat fleas. We are a bed bug specialist. For flea problems in the Richmond area, contact Victory Pest Management. If you're not sure which pest you have, we can still inspect for bed bugs and tell you plainly what we find. If it isn't bed bugs, we'll say so — and for fleas, Victory Pest Management is the right next call.