i have a bump the size of a nickel under my arm, its not red it dont itch, i read that people have \"popped\" them and fluid came out but mine is deep into my skin. i dont like going to doctors i just wanted to know what it could be. i am scared since i lost my father 4 months ago to a number of different cancers
Hi.based from your description, it could be an enlarged or an inflamed lymph node especially if you had a recent infection in the upper respiratory tract. It could also be hi Chat Doctor.  It is best if you have it clinically examined by a doctor, preferably a general surgeon. Further diagnostics such as ultrasound and management (medical and/or surgical if indications are found) will be done accordingly. Hope this helps. Good day!!~