Males Who Have Sex Twice an Hour May Triple Their Fertility

By User:Indolences [Public domain or Public domain], via Wikimedia Commons

There have been many opinions through the years about how important it is to increase sexual activity for couples who are trying to conceive a baby. The recommended amount of time for sexual intercourse for couples trying to conceive a baby has long been debated. A new study conducted by North Middlesex Hospital in London, debunks the old theory that men can use up all of their healthy sperm in the first round of sexual intercourse.

The Study

Not only did researchers find that men do not use their most potent sperm during the first round of intercourse, it was discovered the second round of sperm may actually be the most effective at fertilization.

The study involved seventy-three couples undergoing intrauterine insemination. Intrauterine insemination or IUI, is a fertility treatment that involves sperm being placed directly into a woman’s uterus, usually the procedure has around a 6 percent success rate with sperm from a male classed as sub-fertile. All of the men in the study were deemed as “sub-fertile.”

When researchers used a second sperm sample produced by a male within an hour, the success rates of IUI increased to 20 percent. This is compared to 24 percent using in vitro fertilization or IVF, a more expensive treatment that involves a woman taking fertility drugs that cause the ovaries to manufacture multiple eggs before injecting each one with a single sperm. The finding of this study could also be beneficial to couples hoping to conceive using fertility treatments.

Dr. Jackson Kirkman-Brown, a specialist in human reproductive science at the University of Birmingham stated that the new study results disprove past wisdom that men should refrain from sexual activity before trying to conceive.

He said on the matter, “There is a great deal of misinformation out there. People still think that if you want to have a baby, you should save up sperm when, in fact, not having sex is very bad for men because it affects sperm quality. The fresher the sperm, the better its condition.”

Does Time Really Matter When Trying to Conceive?
There are many factors at play when a couple is trying to conceive a baby. A woman’s age, medical conditions, health, lifestyle choices and other things will affect her chances of becoming pregnant.

The most important thing affecting a couple’s chances of conceiving and something within their control is the frequency of intercourse during her fertile period. According to the results of the research study, it should be as often as possible and particularly in the three days leading up to and including ovulation.

Outcome of the Study

The study reviewed potency testing at level two, so researchers are unsure if having sex three times per hour makes a males sperm even healthier or just inefficient.


The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational and educational purposes. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Neither the owners or employees of nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. See our Legal Statement for more details.

Fertility Clinics Directory

Find a Fertility Clinic

If you or a loved one is suffering from infertility and needs help conceiving then we are here to offer help in any way we can. We have over 450 Fertility Clinics listed on our Directory. Click here to search for a Fertility Clinic that is right for you.