Dog Lump Vigina My Dog Has A Lump And I'm Not Sure If Its A Tumor Or An Imphlated Nipple?

My dog has a lump and i'm not sure if its a tumor or an imphlated nipple? - dog lump vigina

My dog is about an inch wide and is painless, unless you touch them. The knot is very sweet and I'm beginning to nervous that it might be a tumor obtained. I do not know just when I was young and me and my parents what to do. Do you have any idea what could be. And I'm sure there's still hair in the dough. Suggestions on what to do or be what?