Intrauterine Insemination

View the American Society of Reproductive Medicine’s IUI Factsheet

Intrauterine insemination, (IUI), frequently referred to as artificial insemination, is a procedure in which sperm are placed directly into the uterine cavity through a catheter near the time of ovulation. This procedure may be performed when there are problems with the sperm, such as low count or low motility, or an incompatibility between the sperm and the cervical mucus. It can also be performed in combination with ovulation induction to ensure eggs are mature and available during the insemination. IUI increases the chances of pregnancy because the sperm are placed directly in the uterus, bypassing the cervix and improving the delivery of the sperm to the egg.

On the day of the procedure, sperm is collected, washed and concentrated to ensure that the best sperm are placed into the uterine cavity. IUI is a relatively painless procedure that requires only a few minutes to perform and involves the placement of sperm into the uterus through a small catheter inserted through the cervix.