What is the difference between IVF and IUI?

Both IVF and IUI are methods of assisted reproduction. IUI is a basic method of assisted reproduction that does not require the removal of eggs from the woman's body. Treatment involves the introduction of sperm directly into the woman’s uterus. The chances of fertilisation are thus higher than with natural sexual intercourse. IVF is a method of assisted reproduction in which an egg is fertilised outside the woman's body. The embryo is subsequently transferred into the uterine cavity. IVF can be performed with own or donated cells.