Many couples fail to conceive a baby, and it is mostly all women who come to the clinic to check the cause of infertility. In fact, men should also be checked because men also provide half of the chromosomes for the conception of a baby. What aspects of male infertility should be checked? Whether sexual dysfunction is present First of all, it is important to identify the presence of sexual dysfunction, i.e., whether the man is able to successfully ejaculate sperm into the woman. If sexual dysfunction exists, you should take the initiative to inform your doctor. If the sexual function is normal, then it is necessary to check whether the ejaculated sperm is normal or not, that is, semen routine and sperm abnormality rate staining. The requirement for the test is 3-7 days of abstinence, too short a period of abstinence may appear to have a low sperm count, too long a period of abstinence may appear to have poor sperm vitality. In the routine semen report, we focus on sperm count and sperm motility (number of forward-moving sperm/number of grade a+b sperm). Sperm abnormality rate, on the other hand, describes whether or not the spermatozoa are normal in appearance. People often ask what to do if the sperm abnormality rate is 95%. In fact, this is normal, deformity rate less than 96% is normal, that is to say, as long as more than 4% of the sperm morphology is normal. A qualified semen routine report should detect at least 200 sperms, the more sperms are detected, the more reliable the result is, unless the sperms are rarely enough to be detected. Similarly, a semen routine report may not be so accurate, sometimes the state is not good, may have been normal semen routine found out for oligozoospermia, so generally need to check 2-3 times to see the synthesis. Sperm DFI semen routine and malformation rate staining can only see the outside of the sperm, how to evaluate the inside of the sperm? At our center, we have introduced the Sperm DNA Fragmentation Index, or Sperm DFI for short, which is a more powerful indicator than semen routine in influencing and predicting the quality and developmental potential of embryos. Normally, sperm DFI should be less than 15%. For very severe cases of Azoospermia or high DFI, we will recommend you to undergo further tests to find out the cause of the disease, including male ultrasound, thyroid function, reproductive hormone penta-analysis, metabolic tests, and so on. For azoospermia patients, biopsy is required to be taken and sent for pathology to further clarify the cause of azoospermia. Once the specific cause of male infertility is clarified, we will recommend the most appropriate treatment accordingly in order to obtain a pregnancy.