Male The basic tests are: physical examination, semen analysis, endocrine hormones. Depending on the case, further chromosome, Y chromosome microdeletion, semen exfoliation cytology, epididymal testicular aspiration, seminal plasma biochemistry, anti-sperm antibodies, etc. may be performed. Female (for reference only, we recommend to visit the gynecologist for examination) The basic tests are: physical examination, ultrasound to check the uterus, ultrasound to check ovarian ovulation, check the patency of fallopian tubes, endocrine hormones, infections (such as toxoplasmosis, etc.). Depending on the case, chromosomes, anti-sperm antibodies, closed antibodies, etc. can be checked.