I am curious, this is something i have read about very infrequently over the years. I was very active on some of the biggest boards on the net and it is not something that i came across very often. I see it seems to be either common, or something people worry about quite a bit from things like superdrol. Now what i don't get, what is causing these estrogen problems. Estrogen in men, for the most part, comes from the aromitization of our natural test. I see lots of people running nolva for pct which imo is pretty much garbage for pct (better than nothing), but are they doing this to watch against estrogen rebound, or is it strictly for pct. I have a few questions in here so i am sorry for that, just curious though.