Many people think that most of the infertility is caused by the woman, and they always investigate the woman, spending a lot of time and money. In fact, the causes of infertility are extremely numerous, in general, the wife unilaterally caused by infertility accounted for 40%, men unilaterally accounted for 40% of the causes, the two sides of the common causes accounted for 20%. Therefore, all infertile couples should go to the hospital at the same time for examination to find out the causes and treat the symptoms. Why is it most economical and time-saving to check the husband first? It is because semen examination on the man’s side is much simpler and painless than various examinations on the woman’s side. Therefore, when husbands want to have children but can’t, don’t blame their wives first, they should go to do some tests first. The man should first have a basic semen test (about 200 dollars). If the semen test is normal, we can basically rule out the possibility of infertility caused by the man, and then we can start looking for the cause from the woman. If the result of the semen test is azoospermia, the next step is to investigate the cause of the azoospermia, and ultimately through the testicular puncture to determine whether there is still the ability to produce sperm, if the puncture is still azoospermia means that the male partner is infertile, and there is no need to continue to do other tests. If the result of semen examination is oligospermia, weak spermatozoa, malformed spermatozoa, etc., the male partner can be judged to have low fertility, and further find out the cause of the disease and give treatment, and at the same time, the female partner will start the examination, which will minimize the delay in the treatment of the male partner due to the long cycle of examination for the female partner.