Tiny hard lump on my vulva

Hi everyone, 

A few months ago whilst I was shaving, I found a small very hard lump under my skin buried deep in my Labia Majora. I wasn’t too worried thinking it was just a little cyst but it has not gone away. It’s only small - like the size of the head of one of those sewing pins with the balls on top, and it isn’t painful. Any idea what this may be? 

How long have you had it?

I first noticed it earlier this year.. maybe 3 months ago.

Hum, that does sound like a long time for a cyst - those normally start to go down after a few days. I’d see a dr.