The procedure consists of checking and stimulating a woman's ovulatory course of action, eradicating an ovum or ova (egg or eggs) from her ovaries and permitting sperm fertilise them in a lifestyle medium in a laboratory. In vitro fertilisation (IVF) is a procedure of fertilisation wherever an egg is put together with sperm in vitro ("in glass"). This is made use of when sperm has difficulty penetrating the egg.