Hi Dr.Sher,
Is there a limit to the number of letrozole cycles that one can do due to safety. I have done 12 cycles of letrozole. 8 of these have included using a trigger shot, Ovidrel. I know there are concerns with Clomid with regards to ovarian cancer and am wondering if the same applies to Letrozole as it is also used to induce ovulation, similar to Clomid? What are your thoughts? Have I put myself at considerable risk? I also have PCOS.