Infertility has been recognized by the World Health Organization (WHO) as a social disease. WHO estimates that the problem of childlessness concerns on average every one in ten couples globally. So far, precise population studies determining the extent of infertility have not been carried out in Poland. Indirectly however, taking into account the above rates, it can be assumed that approximately 1.2 – 1.3 million couples have problem with conceiving.
With regular sexual intercourses, without applying contraceptive methods, 84% women get pregnant in the first year, and 92% in total after 2 years. At present, a couple’s infertility is defined as the inability of a non-contracepting couple to conceive after one year of regular intercourse.