Is a lone star tick bite dangerous?
Adult female lone star ticks have a single white spot on the back. Common in the South and East, they can cause ehrlichiosis and are linked to alpha-gal syndrome, a red meat allergy.

Not sure what bit you?
Upload a photo and answer three quick questions for a free assessment.
Check my biteWhat it looks like
- Red, itchy bump at the bite
- Sometimes a round rash similar to a Lyme rash
What to do
- Remove the tick promptly with tweezers
- Clean the bite and note the date
See a doctor if you notice
- Fever, headache, or fatigue within two weeks
- Hives or stomach upset hours after eating red meat
Trouble breathing, face or throat swelling: call 911 now.
Other bite guides
Educational information only, not a diagnosis. BiteID is in alpha testing.