Tell us where your bite is (arm, leg, nose, whatever)
Why I think it's a spider bite
Don't know when or what?
I noticed this on the back of my leg. No pain, no other symptoms, doesn't itch. I have no idea what happened. I don't know if it is a spider or insect bite. I was working in the yard. I live in southwest Oklahoma.
I am trying to determine if I need to seek medical advice.