About 25% of couples who are unable to conceive are determined to have unexplained infertility. Traditionally, this diagnosis is made only after infertility evaluation fails to reveal any explainable abnormalities. Usually a couple has gone through all the testing available and everything comes back clear. However, even though the basic evaluations such as evidence of ovulation, adequate sperm count, unblocked fallopian tubes are present a couple still unable to conceive. This is called unexplained infertility in which the cause remains unknown.
As stated, infertility can be caused by many different things. For about 25% of couples, a cause cannot be identified. Infertility rates have increased mostly from problems with fecundity due to an increase in age. About 40% of the issues involved with infertility are due to the man, another 40% due to the woman, and 20% result from complications with both partners.
About 15 to 20 percent of couples are infertile. Infertility is defined as not being able to get pregnant despite having frequent, unprotected sex for at least a year for most people and six months in certain circumstances. Infertility may be due to a single cause in either you or your partner, or a combination of factors that may prevent a pregnancy from occurring or continuing. Fortunately, there are many safe and effective therapies for overcoming infertility. Treatments such as IVF/ICSI significantly improve the chances of becoming pregnant.