How do I know if a spider is dangerous?
In most of the U.S. only black widows and brown recluses are a real concern. If you're unsure, take a photo from a safe distance and ask a pest pro.
Prefer to book online? Compare pest pros on Thumbtack, our partnerIndependent local pest control companies · Insects, spiders, mice and rats · No obligation
Answered by EmergencyExterminators · Spiders and scorpions
In most of the U.S. only black widows and brown recluses are a real concern. If you're unsure, take a photo from a safe distance and ask a pest pro.
What to know
- Black widow: shiny black, red hourglass underneath.
- Brown recluse: brown with a violin-shaped mark.
- Most house spiders are harmless.
Need a pest pro for this?One call connects you with an independent pest control company that serves your area.
Call (855) 424-9709General information for homeowners, not a substitute for a pest pro looking at your home. More on this: Spiders.
Pest Questions
More about spiders and scorpions
Why do I see more spiders in the fall?Many male spiders wander in fall looking for mates, and cooler weather pushes spiders and the insects they eat…Do lots of spiders mean I have other bugs?Often. Spiders follow their food, so many spiders indoors usually means plenty of insects for them to…Where are brown recluse spiders found?Mainly in the central and southern U.S., from Texas and Oklahoma to Tennessee and Missouri. Indoors they hide in…What should I do after a black widow or brown recluse bite?Clean the area and get medical advice, especially for children, older adults or anyone with strong symptoms. Call 911…
