Legal changes to sperm donation were a recurring theme at the PET Annual Conference and Rosie Taylor covered one of the issues raised in the Daily Mail and the Telegraph.
Dr Rachel Gregoire, the Deputy Chair of the Association of Reproductive and Clinical Scientists (ARCS) and Scientific Director of the Hewitt Fertility Centre, told the conference that the current UK ten family limit on sperm donation means nothing if it's ten in the UK and 1000 in globally - that doesn't make any sense'.
The ten family limit applies to egg and sperm donors in the UK to prevent the prolific use of a small number of donors. However, much of the sperm used in fertility treatment is imported from outside the UK.
Professor Jackson Kirkman-Brown, chair of ARCS, told the Mail it could be 'psychological harmful' for children to discover they have hundreds or even thousands of half-siblings.
The HFEA says that it has no powers to extend regulation outside the UK and so cannot prevent a sperm donor being used in the UK and also hundreds of times elsewhere.
You can read more about this session of the PET conference in BioNews.