It may have existed in some capacity for some time, but I just didn’t pay much notice of it. The feel or consistency is similar to a lump
on my lower
back; it is neither really soft nor hard, it feels like a small rubbery lump and you can push around with your fingers. I also have one on the side of left leg, about 10 inches up from the knee. This one is smaller, but harder. In addition, I also have two on my right leg, about six inches up from my knee.