The main difference between IUI and IVF is that in IUI, fertilization takes place internally. It means the sperm is injected directly into your uterus. So, when fertilization is successful, the embryo implants itself into the uterus.
With IVF, fertilization occurs outside of the uterus, in a lab. The sperm and the egg are mixed for fertilization. After fertilization, one or more of these embryos are transferred into your uterus.
The embryo implants itself in the uterus’ lining, resulting in pregnancy and a full-term baby or baby’s delivery.
IVF has a higher success rate than IUI. However, it is generally recommended that couples try 3 rounds of IUI before moving on to IVF.
Now that you know the difference between IUI and IVF, let us move on to the commonalities between them.