There are many reasons for infertility after marriage, some couples are separated or sexually dysfunctional, resulting in the inability to have normal intercourse at the time of ovulation, thus failing to conceive. Some couples have problems with the male partner’s sperm, such as azoospermia, oligospermia, weak sperm, deformed sperm, etc. Many people have a misconception that if a man can have a normal sex life or has had a girlfriend who has gotten pregnant before, there must be no problem, this is a misconception, even if he has gotten pregnant before, it is necessary to conduct a semen test for men. This is because sperm quality decreases with age and can also be affected by other diseases, such as urethritis, epididymitis, etc., which can cause blockage of the vas deferens, resulting in no sperm inside the semen. Even if you can have a normal sex life and semen is discharged every time, there may not be sperm inside or the sperm inside may not have the ability to inseminate. The female side is more commonly affected by vaginitis, cervical problems, cervical and uterine adhesions, and uterine cavity problems, such as endometrial polyps and fluid in the uterine cavity, which are not conducive to embryo implantation in the uterus and are not conducive to pregnancy. There are also common problems such as fallopian tubes, which are blocked by repeated pelvic inflammatory disease or vulvovaginitis, resulting in the spread of inflammation to the fallopian tubes, which is a necessary pathway for sperm and eggs to meet and fertilize. There is also a more common ovulation disorder, such as polycystic ovary syndrome, which can cause women not to be able to rupture follicles and ovulate during the normal ovulation period, and naturally, they cannot get pregnant without ovulation. There are also some women or men who have no obvious problems after the examination, but they just can’t conceive, which is not uncommon in clinical practice. This condition may be related to mental factors, work stress, tension, anxiety, etc. It may also be a very microscopic factor that is not detected by the current routine clinical examination means, such as blood sampling, ultrasound, film, etc., testing, but there must be a reason for it.