The age of the patient and the age of marriage have a great influence on fertility, it is easy to get pregnant when you are young and have been married for a short time, but it is difficult to get pregnant on the contrary, especially for lesbians, the fertility function decreases after 30 years old, and the decrease is even more obvious after 32 and 35 years old, although it is not as obvious as for lesbians, but the sperm quality also changes, that is why we often see some infertility patients who have a history of pregnancy when they were young, but have difficulty getting pregnant after a few years. This is one of the reasons why we often see some infertility patients who have a history of pregnancy when they were young but have difficulty getting pregnant after a few years, so I suggest that young people should not have children too late if possible, and if they have been infertile for several years, they should be treated systematically as soon as possible.