What an adult bed bug typically looks like
EPA describes adults as roughly apple-seed sized, brown, flat and oval when unfed. After feeding they can appear more reddish-brown and elongated. Bed bugs do not fly or jump.
Common look-alikes
| Possible match | Clue that points away from bed bugs | Where to investigate |
|---|---|---|
| Carpet beetle adult | Hard beetle body; may be patterned and found near windows | Natural-fiber fabrics, lint, stored textiles and larval skins |
| Carpet beetle larva | Hairy / bristly larva rather than a flat oval bug | Wool, fur, feathers, lint and quiet storage areas |
| Flea | Laterally flattened and capable of jumping | Pets, pet bedding, carpets and upholstered resting areas |
| Tick | Eight legs as a nymph/adult arachnid; different body plan | Recent outdoor or animal exposure |
| Cockroach nymph | Long antennae and faster roach-like running pattern | Kitchens, bathrooms, cracks and warm harborages |
Bedroom evidence that raises bed-bug suspicion
- Live bugs in mattress seams, box-spring areas, bed frames or nearby furniture.
- Dark spotting consistent with fecal material.
- Rusty or reddish stains on bedding.
- Pale eggs, eggshells or shed skins near resting areas.
A safer decision rule
If treatment would be expensive, disruptive or pesticide-intensive, confirm the specimen first. EPA specifically warns that misidentification can give a true infestation time to spread while you treat the wrong pest.
Quick answers
Can I confirm bed bugs from bites alone?
No. Bite reactions overlap with many other causes. Look for the bug and physical evidence around sleeping or resting areas.
Do bed bugs jump or fly?
No. Bed bugs crawl; jumping strongly points toward another pest such as fleas.
Primary sources
Key safety and evidence claims on this page are grounded in authoritative public sources. Links open the original guidance.