urinary problems for female chow

I have a 6 year old collie chow mix female dog who weights about 65Lbs. For the last few months I have noticed that there is a "muddy looking discharge" where she urinates from. It dose not seem to bother her when she urinates, but I am not sure if is actually does.

She dosent drink alot of water, and when she urinates outside in the backyard the urine seems to look normal. But, there is a dark, dried discharge on her fur where she urinates from. I would appreciate any information or suggestions. I have started to put crushed cranberries in her food, to help with this.  Thank you

[Dan Sims, DVM]

Take your dog to your Veterinarian and have a urinalysis and an exam done.Vaginitis and cystitis are likely.