Do you use any special spot treatments on your pants when you get blood on them?

Nope. Like I said, only the cold water soak and my regular laundry detergent.


Alternatively, is it possible that the bleached out look is from wear and tear?

I don't think so, as the color changes aren't gradual, and the material doesn't look faded. There are well defined shapes that look more like I've spilled bleach or peroxide on them.