A new scientific analysis is challenging long-standing assumptions about male fertility, suggesting that ejaculating more frequently could improve sperm quality and potentially increase the chances of conception.
The research highlighted in a recent report published by The Conversation indicates that sperm stored for long periods in the male reproductive system may accumulate damage, including oxidative stress and DNA fragmentation, which can reduce fertility potential. Scientists say this means shorter intervals between ejaculations may help release “fresher” sperm with better biological integrity.
The findings are based on a large review of studies involving tens of thousands of men, alongside evidence from research on multiple animal species. Researchers observed that sperm quality tends to decline the longer it remains stored in the body, regardless of a man’s age. One of the study’s authors, biologist Dr. Krish Sanghvi of the University of Oxford, said the effects observed were significant, noting that “the negative effects… on sperm DNA damage and oxidative damage were large-ish,” adding that the team considers the findings biologically meaningful.
For decades, medical guidelines such as those from the World Health Organization have typically advised men to abstain from ejaculation for two to seven days before providing sperm samples for fertility testing or treatment. Those recommendations were designed mainly to maximise sperm count rather than quality. The new evidence suggests the balance between quantity and quality may need closer consideration, especially during assisted reproduction procedures.
Researchers point to clinical data that reinforce the argument. In one study involving couples undergoing in vitro fertilisation (IVF), pregnancy rates were higher when men abstained for less than 48 hours compared with those who followed longer abstinence periods recommended by traditional guidelines. The results suggest that fresher sperm may play a more important role in successful fertilisation than previously assumed.
Other scientific literature also supports the emerging view that frequent ejaculation can improve key sperm parameters such as motility and DNA integrity. While longer abstinence can increase semen volume and total sperm count, extended storage may lead to reduced motility and higher DNA fragmentation, factors that can affect fertility outcomes.
Experts caution, however, that male fertility is influenced by a wide range of factors, including age, overall health, lifestyle habits, and underlying medical conditions. As a result, doctors stress that recommendations on ejaculation frequency should be tailored to individual circumstances, particularly for couples undergoing fertility treatment.
Still, the latest findings are contributing to a growing reassessment of long-standing clinical advice and may influence how fertility specialists counsel men trying to conceive, whether naturally or through assisted reproductive technologies.
