I wasn't sure as to where I should've asked this question, so yeah. My boyfriend is 25 years old, and he has a lump/bump/whatever on his left forearm about 2 inches long maybe, and maybe 1.5 cm in width. He says it hurts when you press on it, and at first I assumed it was cancer and started freaking out, but my friend is telling me it's possibly a cyst or a plugged lymph node. I'm pretty sure it's too big to be a cyst, but I'm not sure. We first discovered this lump about 3-4 months ago, and I think it's increased in size a tiny bit since then. Do you have any suggestions as to what this might be?