Hi all.
I have noticed in the last few days that were the fold is at the top of my bitches vulva is very swollen and is stuck out alot.
It is also the part between her bum and her vulva.
She is not due in season for another month or so, i don't think it has anything to do with that but you might know better.
What could it be.

maybe shes just coming in season early.

I'd agree with angle it is often the Perineum that is most swolen just before they come into season.  My young bitch had come in season only 4 months since last time.

Libbys just come in slightly over five months too