The following tests are recommended after unavoidable miscarriage (including empty embryo sac without germ, germ without fetal heart, fetal heart and then disappeared), spontaneous miscarriage and biochemical pregnancy, which can be done after 1-2 menstrual periods after miscarriage, or 3-6 months before the next pregnancy. 1. Blood test: 1. Sex hormones: (1) Check sex hormone six (basic endocrine) on the third day of menstruation; (2) Check sex hormones (mainly estradiol and progesterone) a week before menstruation (or a week after ovulation) to understand the function of the corpus luteum. (2) Thyroid function: the full set of thyroid (this is more comprehensive, some people have high thyroid antibodies, usually Hashimoto’s thyroiditis, further thyroid ultrasound is needed), thyroid five, thyroid three (TSH, FT3, FT4), single TSH and other different methods of investigation. The full set of thyroid is more comprehensive. Several people have high thyroid antibodies, usually Hashimoto’s thyroiditis, and need further thyroid ultrasound examination to check, if only TSH etc. is easily missed. The timing is not related to the menstrual cycle and is usually checked at the same time as the sex hormone 6 test to avoid an extra stab. Note: The time for the above sex hormone and thyroid function tests is generally 8:00-11:00 a.m., (of course, clinical visits are not rigid, and sometimes the tests are conducted as they arrive, regardless of morning and afternoon, and abnormalities are found and then rechecked as required), and fasting is not required (of course, fasting is better around 9:00 a.m.), and a resting state is required (sitting still at the entrance of the laboratory for 10-15 minutes before blood is drawn). 3. TORCH (toxoplasma, rubella, cytomegalovirus, herpes simplex virus) 4. autoantibodies: including anti-sperm antibodies (AsAb), anti-cardiolipin antibodies (ACA), anti-endometrial antibodies (EmAb), anti-nuclear antibodies, etc. Anti-cardiolipin antibodies are especially important for those with a history of bad pregnancy and childbirth. 5. Closure antibodies: Generally, those who have had two or more unavoidable miscarriages must be checked, and those who have had one unavoidable miscarriage are recommended to be checked. The couple should have their blood drawn at the same time. You can have your blood drawn after breakfast, but it should not be too greasy. First register at the TCM gynecology clinic and get a bill. The same day the blood is drawn, the next day the report card can be obtained, the couple only one report card (together to do). Infertility three, this is also Wednesday morning in the Chinese gynecology laboratory blood, and can be examined at the same time with the closed antibody. 6, the couple chromosomes: generally inevitable miscarriage more than twice is recommended to check. Both husband and wife need to take blood, first register to the Chinese medicine gynecology clinic, and make an appointment in advance for the examination. It takes about one month from the time the blood is drawn to the time the report is taken. Second, gynecological examination: routine white belt, mycoplasma, chlamydia, general bacterial culture, gonococcal culture, fungal culture can be added according to the white belt situation. For those with cervical erosion, cervical scraping (TCT, liquid-based cytology) and HPV examination can be added. Ultrasound examination: 1. Immediately after menstrual cleansing: to understand the presence of uterine abnormalities, uterine fibroids, ovarian cysts, endometrial polyps, pelvic effusion, tubal effusion and other organic lesions. 2, ovulation examination (follicle monitoring): to understand the thickness of the endometrium and follicle development, generally 28 days of the menstrual cycle can be detected from the 13th day of menstruation, early or delayed menstruation correspondingly advance or postpone the examination time, menstrual disorders can be measured with ovulation test paper to a weak positive B ultrasound follicle examination. The average of the three follicles detected is greater than 1.8cm as the dominant follicle (e.g. follicle 2.0*2.0*1.8cm), and the detection of the dominant follicle should be continued to see if it can be successfully discharged. 3. Premenstrual examination: to understand the thickness of the endometrium and the presence of uterine adhesions in menorrhagia, and if necessary, 3D ultrasound and endometrial tolerant ultrasound can be done to further confirm the diagnosis. Also perform uterine artery blood flow ultrasound, also 5-7 days before menstruation (or 7 days after ovulation) IV. Basal body temperature measurement (BBT): Please refer to my related article. V. Male side examination: semen routine, seminal plasma biochemistry, sperm morphology, mycoplasma, chlamydia, general bacterial culture. The examination time requires 3-7 days without intercourse, abstinence time is too short or too long will lead to result errors. Pay attention to the requirement of masturbation for sperm extraction, do not use condoms (there are spermicidal agents that affect the results), and pay careful attention to all the semen discharged into the sperm extraction cup, do not spill it outside, otherwise the results will be highly inaccurate. At the same time, according to the doctor’s list of bacterial culture tubes to do mycoplasma, chlamydia, gonococcus, common bacteria culture. Each culture requires a test tube to be dipped in the semen, after which it is sent to the urine and stool test window of the outpatient laboratory. The report of semen routine will be collected from the C.G.L. after one hour, the report of seminal plasma biochemistry and sperm morphology will be collected from the C.G.L. after one week, and the report of bacterial culture will be collected after three days.