Best IVF Doctor in Delhi,In vitro fertilization (IVF) is the most effective type of assisted reproduction technology. IVF (in vitro fertilization) is a fertility treatment used to overcome and prevent infertility (e.g., chromosomal defects) and improve fertility or introduce a child into the world. IVF procedure involves combining the sperm of a man and the egg of a woman in a laboratory dish. In vitro means outside the body.