The document discusses the basics of intrauterine insemination (IUI), including superovulating patients using medications like clomid or letrozole, accurately timing ovulation using ultrasounds and urine tests, and preparing sperm through techniques like washing or swim-up before inserting it into the uterus with a catheter. It notes that factors like the catheter used, number of inseminations, sperm preparation technique, and how ovulation is induced can impact success rates. However, it warns that IUI is often done for the wrong reasons or with unrealistic expectations, and has limitations compared to IVF. The best results are seen in young patients with normal tubes, uterus, and sperm count undergoing IUI for unexplained infertility.