Any opinions please! One of my Labs (bitch, 7 months old) had a small area of redness around her vulva yesterday morning and then in the afternoon she started getting a dark brown discharge which has been on and off since. She is very lively and fine in every other respect. I'm tempted to think that she has come into season, but she has shown no hint of other signs prior to this (like running after the boys at the park or swelling up) and the discharge is much darker than I've seen before with a season ( had experience of 4 other bitches). I'm worried that on the other hand she has some sort of infection, but I've been through all my books a hundred times and can't find anything that it could possibly be. The vets is shut until Tuesday and I'm now considering whether to phone the emergency vet. Is it only in our house that things like this happen on Bank Holiday weekends?