Websep 23, 2022 · noticeable skin discoloration. Webjul 30, 2021 · overview. A bite from a black widow is often.

Spider bites can cause redness, pain and swelling, or you might not. The rash caused by a spider bite will likely take on a different color from your surrounding skin. Spider bites are usually harmless, and spiders don't usually bite unless threatened. Identifying common spider bites.