And if your area of the U.S. is home to venomous spiders like these, it's especially important to know how to identify their bites and what to do if you're bitten. Take a look at these spider bite ...

Not so fast: The actual bite looks a lot like any other spider bite. However, they do tend to become more swollen and redder than your general household spider bite, Vetter says.

What Does a Spider Bite Look Like? If you manage to see the spider that bit you, that's takes a lot of the guesswork out of identifying the bite. But, in reality, that doesn't always happen.

A spider bite looks a lot like other bug bites, as well as some bacterial infections. It usually causes redness, swelling, and pain or itchiness. You might be able to see one or two fang marks.