Common classification methods for infertility mainly include the following types:

The first type is based on medical history, which can be divided into primary infertility and secondary infertility. Primary infertility refers to never having been pregnant; secondary infertility refers to having been pregnant before, but after trying to conceive for more than a year, despite having regular sexual intercourse without contraception, there has been no pregnancy.

The second type is based on the treatment conditions, which can be divided into absolute infertility and relative infertility. Based on the results of treatment, it can further be classified into temporary infertility and permanent infertility.

The third type is based on the causes of infertility, which can be divided into male infertility, female infertility, and infertility affecting both partners.