If she not spayed and over 8 month of age she could be in heat.is her vulva swollen?if so that a sign of her in heat.
My Dog Has Reddish Brown Sticky Stuff On Her Vulva What Could This Possibly Be? She Keeps Rubbing Herself On The Floor I Cannot Seem To Wash It Off
If you aren't 100% sure she is in season you should at least give your vet a call and speak to them about it in case it's a sign of an infection or problem.
www.irvinevetservices.com
www.irvinevetservices.com