IVF or In Vitro Fertilization is a process where fertilization occurs when an egg is fused with sperm, in vitro. Conception, in this case, takes place outside the human body, but once fertilization has taken place, the fertilized embryo is put back into the uterus.
IVF is an Assisted Reproductive Technique that helps couples conceive when non-invasive or minimally invasive procedures such as fertility drugs and IUI do not work.