ICSI can be considered a specialised version or a type of IVF treatment. In the typical IVF treatment, thousands of sperm are combined with the eggs in a culture dish. So the outcomes of the process are chance-based and there are chances of multiple fertilizations or no fertilization at all.
Whilst ICSI facilitates better chances of fertilization as the single sperm cell is directly injected into the single egg. So the process is not left up to chance, as the directed efforts call for higher chances of success of the fertility treatment. However, ICSI as a fertility treatment does not promise fertilization and is rather a more advanced and direct technique to promote fertilization.
If the cause of infertility is poor sperm or motility in men, then ICSI could be the procedure that can help with fertilization, consequently increasing the chance of artificial conception. In ICSI, a single sperm is selected through certain techniques, and the healthiest and most motile sperm is injected into the egg with the assistance of microscopic injections. All of this is done to encourage higher chances of fertilisation.
Both the ICSI and IVF treatments result in the formation of the embryo, which is then transferred to the uterus of the patient. And when the embryo successfully attaches to the lining of the uterus, that’s when the treatment is complete.