Couples will enter a new phase of their lives after marriage and wait for the moment when they conceive a baby. But to have a baby is not a simple task, one must ensure that the individual is healthy in order to prevent the next generation from being affected. Both men and women should undergo a thorough preconception checkup, which will help them plan their fertility early and have a healthy baby. When is it necessary to do preconception checkups? 1.Women are older, especially over 30 years old; 2.Both or one of the spouses has a family history of genetic diseases; 3.No premarital examination; 4.Bad habits, alcoholism, smoking, partial diet, etc.; 5.Both or one of the spouses is engaged in work related to chemical, radioactive substances and other harmful to health; 6.Not vaccinated against hepatitis B; 7.History of bad births, such as habitual abortion 7. those who have a history of bad births, such as habitual miscarriage, stillbirths, children with mental retardation, etc. The most appropriate time for preconception checkups The best time to do the checkup is 3 to 6 months before conception. The female partner should preferably have the checkup within 3 to 7 days after her menstruation, and the male partner should preferably have the checkup after 24 hours of abstinence. Pre-pregnancy check-ups for women and their purpose 1. Blood routine: routine hematological examination. Purpose: To check whether there is a lack of hematopoietic related elements in the body, and to check early whether there is anemia and other diseases to avoid affecting the development of eggs and embryos, leading to miscarriage, stillbirth, birth defects, etc. 2. Reproductive system: white belt examination, three reproductive immunity tests, etc. Purpose: It can check whether you are suffering from gynecological diseases and whether you are infected with teratogenic pathogenic microorganisms to avoid affecting the quality of eggs. 3. Full set of teratology: including rubella, toxoplasmosis and cytomegalovirus. Purpose: To eliminate teratogenic factors from the root and avoid infection with rubella virus, etc. 4.Liver function: Hepatitis B function, blood sugar, bile acids, small liver function, etc. Purpose: Hepatitis virus is possible to be inherited, and hepatitis patients are very likely to give birth prematurely. 5.Urinary routine: urine acidity, color, transparency, cells, protein, tubular type, specific gravity check, etc. Purpose: To check the kidney function. The mother’s kidney system will encounter great challenges throughout the pregnancy stage, the body’s metabolism is accelerated and the kidney burden is increased. 6. Oral examination: routine oral cleaning, early extraction is recommended for wisdom teeth, tooth decay and other problems. Purpose: During pregnancy, if a pregnant woman has problems with her teeth, treatment will be very tricky when considering the fetus. 7. Six endocrine items: luteinizing survival hormone, follicle prohormone, etc. Purpose: To understand the endocrine situation of female reproductive system and diagnose the cause of menstrual disorders. 8.ABO hemolysis: blood type, ABO hemolysis titer. Purpose: To prevent the occurrence of diseases such as hemolysis in the fetus. 9.Chromosomal abnormalities: examination of hereditary diseases. Purpose: Both spouses or one of them has a family history of hereditary diseases must be examined to prevent chromosomal abnormalities and thus affect the health of the next generation. Male pre-pregnancy examination items and purposes: 1. Liver function: Hepatitis B function, blood sugar, bile acid, small liver function, etc. Purpose: Hepatitis virus is possible to be inherited. 2.Chromosomal abnormalities: examination of hereditary diseases. Purpose: Both spouses or one of them has a family history of hereditary diseases must be examined to prevent chromosomal abnormalities from affecting the health of the next generation. 3. Semen routine: sperm count, survival rate, activity rate, general traits, etc. Purpose: To check the quantity and quality of male sperm, assess the ability to conceive, and thus determine whether a normal and healthy pregnancy can be achieved. 4.Urological system: penis, urethra, prostate, testicles, spermatic cord. Purpose: To check whether there are diseases affecting fertility such as orchitis and AIDS. 5.Blood routine: 18 items of blood routine. Purpose: To check whether suffering from leukemia, sepsis, hepatitis and other diseases. 6.Electrocardiogram. Purpose: To check for diseases such as angina pectoris.