I got a strange bump and don't know what it is?

ryoukamui
a few months ago i noticed i had a bum on the back of my upper leg just a inch above the knee area. now at first it didn't hurt and itch at all. but in the last week it had given me a bit of discomfort. there is no discoloration and it feels like there is something hard underneath the skin... any suggestions of what this might be? should i see a doctor right away?
I got a strange bump and don't know what it is?
2 Opinion