In conclusion, we think that IVF is the most important treatment for couples who have no or little chance of conceiving naturally and that all these couples should have the opportunity to have IVF. However, early IVF is only indicated in the minority of couples: those who have a clearly identifiable cause of their infertility. Many couples need more time for realizing a natural pregnancy. Hoorens et al. grossly overestimate the impact of IVF as a policy measure to boost birth rates. If governments would follow their recommendations, this would have serious health consequences for mothers and children.