If you catch gyno quick enough you can get rid of it with an AI. But of you develope that dense fibrous type tissue it will probably not go away with an AI. You can reduce/ rid flare ups from old or reoccurring gyno with an AI. I haveade it about 6 days before restarting an AI with noticeable, itchy, swollen old fibrous tissue that was not removed after gyno surgery. I actually had doubts but arimistane worked.... Years of gyno, you can help if maybe with an AI but surgery is probably the only way. It's interesting to see discussions on SERMS since it's been 14 years since I really did a good cycle of the best Ph you could get at the time.