IUI is a fertility treatment that uses a small catheter to insert u201cwashedu201d sperm directly into the uterus in a process similar to a pap smear. The goal of IUI is to increase the number of good sperm that reach the fallopian tubes and subsequently increase the chance of fertilization. Learn more, please visit: https://dallasfertilitycenter.com/fertility-blog/when-does-artificial-insemination-iui-really-help/