Intrauterine insemination (IUI) is a fertility treatment that involves placing sperm directly into a woman's uterus during ovulation. This procedure increases the chances of sperm reaching the egg, potentially leading to pregnancy. IUI is often recommended for couples facing certain fertility issues, such as unexplained infertility or mild male factor infertility. The IUI process typically involves monitoring the woman's ovulation cycle, followed by the collection and preparation of sperm. The sperm is then injected into the uterus using a thin catheter. IUI is a less invasive and more affordable option compared to other assisted reproductive technologies, such as in vitro fertilization (IVF).