Τhe definition of health remains unchanged since 1948. It is in the official constitutional text of the World Health Organization, which was accepted by the World Health Conference, signed on June 22, 1946 by representatives of 61 states in New York and entered into force on April 7, 1948. According to this definition, health is a state of complete physical, spiritual and social well-being, not simply the absence of illness or infirmity.

By this term, infertility is indeed a health disorder. The couple, who can not conceive  despite its desire, is not in "complete spiritual and social well-being," provided  that this is considered to be a social stigma and as a consequence this affects the spiritual and social well-being of infertile couples. Thus, infertile couples are "sick", but that does not mean that they need to be stigmatized, just as no one is stigmatized because of flu or myopia. Infertility does not have any particular symptoms, and "patients" do not seem to "suffer" from an obvious disease.