Spots or discharge on spayed female dog

Question
I have a two year old Pembroke Welsh Corgi who periodically gets bladder inspections due to the way she squats to urinate. After discussion with our vet I am now washing her private area weekly to minimize her getting infected. the other evening after she had urinated she squatted again as if she was going to mark the spot. I noticed she passed three very small drops of blood. The following morning I made sure I got a urine sample and brought it to the vets thinking she got another bladder infection. I was told that it tested negative. Talking with a breeder in our dog club she called that little discharge "virginitess". Not sure of the spelling.
Could you give me a further explanation. She said it is something like a false heat in a spayed female dog.

Answer
Vaginitis does not usually result in spotting of blood--usually some mucous-yellow type of discharge.  I would recommend having an x-ray taken to make sure she doesn't have any bladder stones.

Repeat bladder infections can indicate an underlying problem, such as a birth defect like ectoptic ureters, bladder stone as mentioned above or a weak immune system.

I would start by giving her Cranberry capsules...1 twice a day to help prevent some of the infections and seriously consider getting her on an immune stimulant such as Transfer Factor www.transferfactor.com
www.4tf-pets.com/testimonials.htm  to help her fight off the infections naturally.

Spayed females should not go into a false heat unless the surgery was not done properly and a piece of ovary was left.