Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Oocyte preservation has allowed women to choose the appropriate time to experience the phase of motherhood. All women, whether they are victims of cancer, tumours amongst others, can dream and realise this dream of having a baby. Oocyte preservation involves the extracting of about a third of the tissue of one of the two ovaries which consist of approximately 60,000 eggs.