you should go have this checked by a doctgor because it is getting bigger
could be a cyst boil,is it sore to touch go to your docs for treatment.keep me posted
The liklihood it is a lipoma, which are strange jelly-like growths that probably come from an alien spaceship. Not to worry.
They arrive unexpectedly, don't do any damage, and are usually painless. They have no conncection whatsoever with cancer or a malignancy. They commonly form on the wrist or forearm. Some people leave them alone and have them for decades.
The insides are filled with lymphatic fluid and dark matter (you heard about dark matter in outer space?). Sometimes doctors like them to "mature" a bit before they remove them.
A dermatologist will sometimes elect to surgically remove them, but the traditional treatment is to smash them flat with a book.
SPLAT!
This sends them back to the place they came from with no lasting effects.