The method of in-vitro fertilisation, where the sperm is left alone to spontaneously merge with an egg, has been enhanced by additional methods to reach higher success rates. That is the reason why it is standard for IVF CUBE to use the ICSI method, Assisted Hatching (AH), prolonged cultivation and vitrification of the remaining embryos. Thanks to these additional methods we are able to reach over 84% success rate.