IUI - Intrauterine Insemination. Sperm that has been put through a centrifuge is injected into the woman's uterus using a catheter. IUI is relatively painless for most women and is done as an outpatient procedure. IUI is the same procedure used for Donor Insemination. IUI is also referred to as AI (artificial insemination) or AIH (artificial insemination - husband) and AID (artificial insemination - donor) An IUI -- intrauterine insemination -- is performed by threading a very thin flexible catheter through the cervix and injecting washed sperm directly into the uterus.Best Timing For IUI
Ideally an IUI should be performed within 6 hours either side of ovulation — for male factor infertility some doctors believe after ovulation is better, otherwise chances of success are higher with insemination before ovulation with the sperm waiting for the egg. When timing is based on an hCG injection, the IUIs are usually done between 24 and 48 hours later.