Fertility testing involves both partners. While we may think of pregnancy as happening in the woman's body, conception takes two.
According to the American Society of Reproductive Medicine (ASRM), 25% of all infertile cases have one or more contributing infertility factors. For instance, the ASRM reports that 40% of infertility cases are due to male factor infertility while 25% of female infertility is due to abnormal ovulation.Not every fertility test will be done for every case. The more invasive fertility tests, like diagnostic laparoscopy, are only done when symptoms or other tests point in that direction, or when a cause for infertility cannot be found otherwise.