Hello. I am a 14 year old boy who knows nothing about cancer but I believe I might have it. A couple of months ago I noticed a lump on the bottom of my right foot. It looked a lot like a blister so I leaved it alone to see if it would maybe go away. But after a few weeks I didn t go away so I poked a whole in it with a small clean needle to find out it I fact was a blister. So a month or 2 later it came back, but it was bigger and had a scab or something on the top, it got bigger in size and looked like a blister again. I took a Little bit of the scab off but it felt like I was taking off my real skin and started to bleed. It hasn t got much bigger yet but still is growing a little. it is about as big as a dime right now. So is it cancer or tumor or something. I haven t noticed anything strange happen yet! Please help me.