The medical literature asserts that a few years back, it has recorded that some 60% of all infertility cases cover unexplained infertility. The medical community, even these days, believe that this condition still prevails since 20 to 25% of all patients are believed to have shown no clear symptoms that can be associated with infertility. Yet, even with the absence of obvious (and subtle signs), experts cannot still discard the unexplained infertility cases since participants are, in fact, positive of being infertile.

One reason why there are large portions of infertility cases diagnosed as unexplained is the lack of time and techniques that will help clear the rubles off the issues. Some authorities believe that for one to be diagnosed of infertility clearly, he or she must undergo a comprehensive program for tests and examinations. Obviously, shorter periods of observation and analysis can possibly be misleading. They believe that more extensive parameters of diagnosis are used, the number of unexplained infertility cases will drop dramatically.

However, that assertion is partly unachievable for the present since methods of analysis employed in the field of infertility are somewhat lacking. While many procedures claim of their advanced use of technologies, they are still unable to penetrate into deeper issues that may shed light to the condition we believe to be "unexplained".

In short, the medical science must deal with the flaws of the procedures it uses. There certainly are many defects as may be presented in the assisted reproduction techniques still used today.

Though advanced methods have high rates of delivering their patients what they promised, there are still some cases when even the practitioners themselves are unsure of how to conduct the procedures very satisfactorily.

A good example is the situation patients of in-vitro fertilization face.

While in-vitro fertilization is widely accepted as the ultimate option for infertile couples to be able to produce pregnancy, no one (except those who were exceptionally hopeful enough as to show signs of high pregnancy rates) is truly assured that they can actually conceive and deliver a baby successfully. In fact, most patients have to undergo several times of financial and physical taxation via the techniques employed in the industry before they can be assured of a workable pregnancy. Nonetheless, they still have no guarantee of a successful pregnancy, delivery and birth of the child.