Eugenics is an important part of promoting family happiness and harmony. Pre-conception eugenic health check is a pragmatic way to improve the quality of the birth population and reduce the risk of birth defects. Therefore, you should not skip this step. Pre-conception checkups can be done 3-7 days after menstruation is clean. To have a healthy baby, a pre-conception eugenics checkup is sufficient. In addition to the general physical examination, blood and urine routine, hepatitis B surface antigen, and some special pathogens should be tested. Chromosome testing should be performed where available to avoid hereditary diseases. The following are the criteria for male reproductive health before pregnancy: (1) No uncomfortable symptoms, such as itching, pain, burning, discharge and odor from the urethra. (2) Routine physical examination does not reveal any abnormal signs, such as excessively long or short foreskin, prepuce, varicocele, etc. (3) Semen laboratory tests were normal. (4) Blood HIV (AIDS virus) and PRP (syphilis serological examination) were negative. (5) No boredom in sexual life. To ensure male reproductive health before conception, you should be examined for germline infections before marriage, and once you are found to have a germline infection, you should actively treat it, and it is best to get married after healing. Avoid the use of drugs before 3 months of planned pregnancy, quit smoking, avoid alcohol, especially not alcohol. Wash your genitals with water before sex, especially the glans and grooves. Wear cotton underwear, not too tight inside and outside pants, especially not very skinny jeans. Do not be exposed to radiation exposure, such as X-ray fluoroscopy, until 3 months into the planned pregnancy. The following are the criteria for female reproductive health before pregnancy: (1) Routine gynecological physical examination does not reveal any abnormal signs. No uncomfortable symptoms such as itching, dryness, pain, burning sensation and odor of vulva. (2) The cleanliness of the leukorrhea is below 2 degrees. There are three degrees of leukorrhea cleanliness, with degree 1 being close to normal, degree 2 being mild inflammatory changes, and degree 3 being moderate to severe inflammatory changes. (3) The doctor will make a preliminary judgment of the degree of infection in the reproductive tract based on the white belt test report, combined with clinical examination. (4) Laboratory examination of leukorrhea secretions, no pathogenic bacteria such as Trichomonas, mycobacteria, Ureaplasma solium, Chlamydia trachomatis, gonococcus, etc. were found. (5) Blood HIV (AIDS virus), PRP (syphilis serology) and HSV (herpes simplex virus) tests were negative. (6) No abnormal results in the eugenic screening program. (7) No breast disease. (8) No abnormal findings on ultrasound of the uterine adnexal pelvis, such as ovarian cysts and teratomas. (9) No abnormal cervical cancer prevention smear. (10) No boredom in sexual life. See if you meet the above requirements? If you feel unwell you need to seek medical attention in time, because this may be the cause of disease occurrence, and may even lead to infertility, which is not conducive to eugenics.