What is this bump on my vagina?

I made a previous post and I wasn’t clear. IM NOT SHAVING THE INSIDE OF MY VAGINA. I’m talking about the area BEFORE the lips, but after the the area that is most heavy with hair. I randomly get a small sore bump a day or a few after shaving. But only so times does it contain puss. Most of the time it just blood. But it’s ALWAYS in the same exact spot. Is this an ingrown hair or worse? It’s only ever one bump at a time, not clusters. The last one I had was last month and it was sore and hard but never came to a white head. I was aggressive with it and it bled and went away, now this month here we are. Any experience? Why the same spot?