Hi Dr Sher, I have recently had some basic immune blood tests, including NK cell profile, NK cell cytotoxicity assay and Th1/Th2 cytokine ratio assay. The results show that my NK percentage was 11.56% and I have significantly raised Th1/Th2 cytokine ratios. I have no known family history of immune issues. What do these test results mean and how can this be treated for my next frozen embryo transfer?