Sequential Embryo Transfer (SET) is a specialized IVF technique where two sets of embryos are transferred into the uterus at different stages of the same menstrual cycle—typically on days 2–3 and again on days 5–6. This approach allows both early-stage and advanced-stage embryos the chance to implant, thereby improving pregnancy outcomes.
SET is often recommended for couples with repeated IVF failures or implantation difficulties. By transferring embryos at different stages, this method improves the likelihood of successful implantation and increases pregnancy rates.