I have a three year old spayed bitch who is on the 21st day of her season and she is now showing fresh blood. I will of course take her to the vet tomorrow but I wondered if anyone could say why this has happened. Her season was the normal length and her moods were as expected. She seems fine in herself - eating well, playing with my other dog. I was looking forward to letting her have a run tomorrow but need to get this checked out first.

Oops that should read unspayed!