Infertility is a disease when after a year the natural pregnancy isn't determined. Modern methods of treatment let doctors determine all the reasons for infertility during two month period as it is a combination of several factors.

Female and male infertility - both of them exists and its correlation is 50/50. According to the classification of the World Public Health Organization there are 22 reasons for female infertility and 16 reasons for male infertility. In addition to previously mentioned types, combined infertility also exists. Thus, if a couple has problems, the only solution is for both to be examined.