Infertility: non-subjective factors without entropy birth to their children is called infertility, accounting for 10% of couples of reproductive age, including two types of infertility and habitual abortion.

Infertility: There is a normal sex life without contraception, pregnancy is not a year, known as infertility. 2 years after the marriage has never been pregnant were known as the immunogenicity of infertility; have had a succession birth or miscarriage were more than 2 years of infertility, known as secondary infertility.

Habitual abortion: continuous 2 to a certain stage of pregnancy is called a natural abortion habitual abortion (RSA), accounting for 20% of infertility.

Refers to women’s marriage, husband and wife living together more than two years, without pregnancy; or have bred before, again without re-pregnancy interval of more than two years.

Infertility that there have been pregnancies, but without the live births, including miscarriage, premature delivery or stillbirth. Primary infertility is divided into two kinds of infertility and secondary infertility.