is this something to be worried about?

Question
I am not sure if there is something wrong with my bunny or not and I cannot find
any information anywhere on this. My bunny is just about 6 months old (and not yet
'fixed', though the appointment has been made). She is a holland lop, and tonight I
noticed that she had some blood (it looks like blood) at the base of her tail, just
below where her private parts/bum is. I am not sure that this is blood because it is
quite red and the area is dry (I assume dry blood to be the same as human blood, in
that it darkens when it dries) But also she is a bit of a messy eater (she is white
and frequently has a bit of an orange mouth after a treat of carrot) and
occasionally sits in her food dish without noticing, so this morning i gave her a
strawberry as a treat, and her wood chew is red. She eats a normal, balanced bunny
diet, and has not shown any signs of being in pain, and her activity and eating
habits have not changed in the slightest. Do you think this is something to worry
about?

Answer
With all the red things she is eating, it's possible that it is just chemicals in the carrot and strawberry that are causing this issue.  Indeed, rabbit blood when dry looks like dry human blood.

You can read more about this at http://www.rabbit.org/journal/3-1/red-urine.html

If you ever start seeing blood clots, however, then you would want to get her to the vet.

Kim