This is our first bullmastiff puppy. She is 6 months old. In the last 1-2 months we have noticed that the area above her vulva seems larger than other dogs. She has not gone into her first heat and I don't think she is yet. There is no redness or swelling on the vulva and she hasn't had any trouble with UTI's/infections. I'd like to get some input from these pictures to see if others have run into this. Is it normal for bullmastiffs and large breeds? Will she grow out of it?