Intrauterine insemination (IUI) is the placing of sperm into a woman’s uterus when she is ovulating. This is achieved with a thin flexible tube (catheter) that is passed into the vagina, through the cervix, and into the uterus.
IUI can use sperm from the male partner or a donor. It is often combined with superovulation medicine to increase the number of available eggs. The purpose of IUI is to achieve fertilization and pregnancy and is a relatively simple procedure.