The definition of infertility is imprecise, vague and varies from country to country. The same terms “sterile” and “infertile” are used – by doctors, by the mass media and by the people who have the problem themselves – in a confusing way to identify couples who, in a more or less long period of time, are unable to have a child. The World Health Organization has proposed the following terminology fertility screening singapore
- primary infertility: couple who never conceived after two years of regular sexual intercourse;
- secondary sterility: couple who have conceived and who, for a period of two years, are unable to have another pregnancy;
- infertility: defines a woman who, despite being able to conceive, is unable to carry a pregnancy to term.
Infertility can have both male and female causes. According to the National Register on Medically Assisted Procreation of the Istituto Superiore di Sanità, in 35.4 percent of couples its causes are found in men, in 35.5 percent in women. Another 13.2 per cent of couples suffer from idiopathic infertility (the cause of which is unknown), while in 15 per cent of cases the causes must be sought in both sexes.
WHAT ARE THE REASONS FOR THIS INCREASING DECLINE IN FERTILITY?
One of the reasons concerns the mismatch between the biological age and the “social” age in which the first child is sought. Female fertility is highest at an age now considered to be very early for reproduction. Women in developed countries study and look for work before getting married.