Women: endocrine hormones (on the third day of menstruation), thyroid function, ultrasound of uterine adnexa, mycoplasma chlamydia, TORCH, full set of antibodies (anti-sperm antibodies, anti-endometrial antibodies, anti-cardiolipin antibodies), ovulation monitoring (if the menstrual cycle is normal, ultrasound is usually done every other day or every day from the 12th day of menstruation to understand the development of follicles), hysterosalpingography (this is an invasive operation and requires contraception for more than one month after the imaging), blood chromosomes (usually required for patients with a history of miscarriage). (this is an invasive procedure and requires contraception for more than 1 month), and blood chromosome (usually required for patients with a history of inevitable miscarriage). In addition, if you have a physical examination, you should inform your doctor if you have any special abnormalities.