Help, My skin tag is painfu..

I am a 19 year old male who has had a skin tag maybe half the size of a pencil eraser in my armpit ever since I can remember. For all I know I was born with it.

A few days ago I bumped it or something and noticed that it felt kind of painful. I've had it forever and it never really bothered me before so i thought that this was kind of odd. It has been painful like this for a couple days now. It is not all that painful, just hurts a bit when I move it around. It feels like it only hurts on the stalk. I noticed that it has also changed in color. It always used to be just slightly darker than the skin around it, but it has gotten a very dark brown almost black. The stalk appears to be maybe a bit red and irritated looking.

I have read on the internet that these things rarely ever or actually do not become cancerous or anything, but I am still really worried. Is it possibly cancer? Should I go to the doctor or is it just getting ready to fall off?

Skin tags are rarely dangerous, but you should definitely go see your doctor, just in case. My husband has some in the same place and any friction that is different than normal makes it painful and raw. It's a definite possibility that it's getting ready to fall off, but if not and you want it gone, a dermatologist can remove it fairly easily. Definitely consult your MD.

better consult to expert...

ANY change in a growth on the skin needs to be seen by an internist or a dermatologist IMMEDIATELY as the growth you may see could be deeper than you think. Better to be safe than sorry. Suzanne

go to a dermatologist. they will take a biopsy and tell you want you need to know

You need to show it to a dermatologist. It's better to be safe than sorry.