The current limit is 40 based on previous studies which found that sperm quality declines as men get older. The research was presented at the annual meeting of the European Society of Human Reproduction and Embryology. You can find our Community Guidelines in full here. Want to discuss real-world problems, be involved in the most engaging discussions and hear from the journalists?
Sperm donations from older men more likely to result in pregnancy | MNN - Mother Nature Network
Log in Advanced Search. What makes the study interesting is that the conclusions are derived from an analysis of nearly 72, singleton birth records taken from the Danish Fertility Database. With such large numbers it is possible to adequately control for the known risks of female age and therefore look at the children fathered by older men whose partners were between the ages of 20 and The conclusions were striking: the risk of some conditions rose significantly in fathers as young as 35 and by the time a father is over 50, the risk of Down syndrome had increased fivefold above that seen in fathers aged So why should this be of interest to anyone other than male celebrities who find that they have managed to snap up a younger bride?
Sperm donations from men in their 40s are more likely to result in pregnancy, study finds
Ghuman, E. Mair, K. Pearce, M.
By Sarah Knapton , Science Correspondent. Men should be allowed to donate sperm up to the age of 45 because IVF success is not determined by the age of the donor, research has found. A study by Newcastle Fertility at the Centre for Life showed that it was the quality of the sperm that mattered in conception.