I had a pimple/cyst under the skin on the inside of my thigh. I figured it was a cyst since there was no head. Over a couple days it grew a bit larger from the size of a dime to a quarter. I would feel around it and squeezed it a little, not so much to pop it there wasn t a head but to kind of feel what it was/get the texture. It hurt and then got even bigger, this time expanding out over another day till it was huge. Still under the skin, no head. I took a pin and tried to drain it (sterilized it with iodine wipe) and only blood came out, mostly dark and then some lighter blood. For the small hole it seemed like a lot of blood came out. I ve had cysts before and think it might just be another cyst but the rapid growth/size of it made me think it was something else. Anything ideas?