I just recently noticed a very small, firm lump (painless) at the bottom of my scrotum. It is NOT attached to either testicle - it's actually in between the two, just under the skin of the scrotum. It doesn't move at all, so it appears to be attached to the scrotum itself. My initial online research seems to point to a cyst of some kind. Does this sound like anything I should be immediately concerned about? I have an appointment for a checkup in March, and would prefer to not bother having it checked out any sooner, assuming nothing changes in the meantime.
FYI, I am 27 years old.