How do I know if I have bed bug bites?
Bed bug bites often appear as small itchy welts in lines or clusters on skin exposed during sleep. They are uncomfortable but are not known to spread disease.

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Check my biteWhat it looks like
- Small red or dark bumps in a line or zigzag of three or more
- Usually on arms, neck, face, or legs
- New bites appear overnight
What to do
- Wash bites with soap and water; avoid scratching
- Check mattress seams for small dark spots and bugs
- Wash bedding on hot and dry on high heat
See a doctor if you notice
- Signs of infection: spreading warmth, pus, fever
- Blistering or severe allergic reaction
Trouble breathing, face or throat swelling: call 911 now.
Other bite guides
Educational information only, not a diagnosis. BiteID is in alpha testing.