I noticed mine growing while I was on Lupron for a year and a half. Yet another little thing I was never advised of when they started me on that poison. My t levels have run as low as 130 and as "high" as high 200s since radiation for prostate cancer in '06. I was miserable while on Lupron but really don't mind some of the side effects of low T, especially the reduction of body hair. The moobs are obvious but not like a woman's and I enjoy playing with them.