Unlike mosquito bites, bed bug bumps tend to appear in patterns, not random single spots.

How Long Do Bed Bug Bumps Last?
For most people, bed bug bumps last 3 to 14 days, depending on skin sensitivity and whether they’re scratched.
Scratching can make things worse by:
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Increasing inflammation
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Delaying healing
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Raising the risk of skin infection
If bumps continue appearing every few days, it’s a sign the bed bugs are still present.
How to Tell Bed Bug Bumps Apart From Other Bites
It’s easy to confuse bed bug bumps with other skin issues. Here’s how they differ:
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Mosquito bites: Usually larger, isolated, and appear randomly
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Flea bites: Often around ankles and lower legs
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Allergic rashes: Spread more evenly and aren’t bite-centered
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Acne or pimples: Have whiteheads or blackheads, not puncture points
The biggest clue? New bumps appearing after sleep, especially when traveling or after bringing used furniture home.
How to Treat Bed Bug Bumps
You can’t treat the bites without addressing the bugs—but you can relieve symptoms: