In-Vitro Fertilization (IVF): Meaning, Process, Cost & Success Guide In-Vitro Fertilization (IVF) is one of the most advanced and widely used fertility treatments in the world. The term “in vitro” means “outside the body,” so IVF refers to a procedure where a woman’s eggs are collected and fertilized with sperm in a laboratory. The resulting embryo is then placed in her uterus to t...