Blood in droppings

[Lamper121 239]

My oldest Jill had fresh red blood in her droppings for a couple of days last week. She is a healthy weight and eating and drinking fine; I'd say she was slightly less active than the others but that has been apparent for a while and I put that down to the fact that the other three are only between 8/9 months and just under 2 years old where as she is an old girl. I had changed all of the ferrets' diets last week as I ran out of rabbit and put them on dry food in the interim. I was worried that the change to a dry food had caused her to have harder than usual droppings and was causing the bleeding from her backside. Anyway I moved them back onto fresh rabbit two days ago and kept an eye on her; last night I watched her take a dump and checked and there was no blood, just the usual black tarry type dropping which I would expect on a fresh rabbit diet. 

Firstly has anyone experienced this before? and was it due to diet? 

Secondly should I get her to the vets just in case? I'm tempted to segregate her for a day or so I can see if she is still bleeding sometimes. 

[Aussie Whip 4,092]

Never seen it but could be from straining to pass the dry feed.If feeding dry food I always soak in water and egg yolk for a while.

[Blackbriar 8,569]

Probably just the diet change to dry feed. All mine are fed kibble, but I supplement daily with eggs or meat, just to 'help keep things moving'.........

If she's otherwise healthy, with no obvious abnormalities, I wouldn't worry.

[The one 8,467]

As said maybe the dry food ?. the amount of water they go threw on dry shows how dry it makes them so maybe she was constipated 

[Lamper121 239]

She's all good now, I put it down to the rapid diet change to dry food at the time. The only thing she needs to worry about now is being shagged silly by the hob!

Thanks for all your replies.