Sperm on the underground - why storing it up is no good for your fertility

by dee armstrong


Couples often ask me how often they should have sex and whether they should abstain from sex before the fertile time of the month to save up his little swimmers - no! When I was doing my fertility training I was told a story with great imagery that neatly illustrates why storing up sperm is a bad idea and I now tell it to all my clients.  

underground rush hour.jpg

Imagine a London underground train racing along the Picadilly Line in rush-hour. Imagine that all the passengers are sperm and that ejaculation is represented by the train stopping at a station and people getting off the train.  If you don't ejaculate regularly you're not letting people off the train.  But your testicles keep on manufacturing new sperm all the time. So it's like every time the train gets to a station no-one gets off ... but more passengers get on. And on to the next stop and the same thing happens again and the train gets more and more full and soon all the seats fill up. And it gets really hot and stuffy and before you know it there's standing room only and everyone's tired, feeling ill and jammed right up into the armpit of their neighbour.  Next thing it gets so crowded people are puking and fainting and generally having hysterics and then people start to die!  When the train gets to the end of the line certainly no-one is in a fit state to climb the stairs and get out through the ticket barriers and go home. It's exactly the same for your sperm - if you store it up, it's in no fit state to rush up the stairs at the end of the line and fertilise the egg!  Men who haven't ejaculated in a while produce sperm that is generally of a lower quality. It's very common amongst couples who are trying to conceive to bonk like mad in the middle of the cycle and then collapse in a heap during the two week wait.  Then her period comes and that's another week - if you're not careful 3 weeks have gone by before the next fertile phase comes around and if you haven't ejaculated in that space of time those swimmers are going to be good for nothing much.   

So, let passengers off the train regularly, boys!  It's a good idea to ejaculate (which doesn't necessarily mean having sex - just a thought...) at least every 3 days and according to leading UK andrologist, Dr Allan Pacey, more often that that is fine too. Don't listen when your partner tells you not to masturbate because she read something on the internet saying it's not good for getting pregnant - the reverse is true.  For once a fertility top tip that isn't a chore.