In the Japan Society of Obstetrics and Gynecology, infertility and the "men and women of reproductive age want to become pregnant, there is a certain period of time, without having to contraception a normal sexual intercourse to continue looking at the establishment of pregnancy even though doing If not ".
The fixed period here differs from country to country, and in Japan it was generally considered to be two years. But in 2015 in Japan Society of Obstetrics and Gynecology aging of the start age of inspection and treatment in the late marriage has become a remarkable, this "certain period" is generally to be about one year , and the change doing.
In Japan, the proportion of couples without children is said to be around 10 to 15%, but not all couples have a desire to have a baby, so there is some cause of infertility and they want it Nevertheless, couples who do not have children will have infertility.
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