EU health ministers are proposing international limits on the number of children a single sperm or egg donor can produce to address concerns over the 'super sperm donor' phenomenon. The proposal, backed by several countries, aims to establish regulations due to ethical concerns and demographic trends. Current national laws vary, and some donors have fathered hundreds of children, raising psychosocial issues. A cross-border donor register is suggested for effective implementation, while the European Commission remains cautious about the initiative.