If there is a known cause of infertility such as irregular menses, abnormal semen analysis, history of endometriosis, or blocked fallopian tubes, it is recommended to see an infertility specialist as pregnancy is desired. If a woman is less than 35 years of age and healthy, it is fine to wait 1 year before seeing a fertility specialist. If a woman is 35 years of age or older, it is recommended to see a fertility specialist after 6 months of trying. At the age of 40, it is appropriate to seek fertility consultation immediately.