Ganglion Cyst

I went to a hospital and a Doctor told me that I have a Ganglion Cyst:
http://en.wikipedia.org/wiki/Ganglion_cyst

It is a special case of Cyst and he also told me that it may go away or pop; I don't know what "pop" would mean tho.
I feel little bit of pressure on my hand and arm but not a big deal.
Hopefully it goes away soon.