As an obstetrician and gynecologist, you will encounter a variety of pregnancy-related illnesses during your sittings, some of which are completely avoidable. How can they be avoided? It is by doing pregnancy preparation tests. Many couples, after deciding to have a baby, pay special attention to ovulation to get pregnant faster, but neglect such a very important thing as a pregnancy preparation test. Pregnancy tests are performed in cooperation with both partners to check the couple’s physical condition, determine the best time to get pregnant, and rule out some unexpected situations that may occur during pregnancy. So what are the main tests for pregnancy preparation? When and how should the test be performed? And what preparations are needed? Checkup items Checkup time Pre-conception checkups are recommended for couples 3 to 6 months before pregnancy. The examination items include ultrasound, liver function, blood routine, urine routine, electrocardiogram and other targeted examinations. Pre-pregnancy check-up for women: Check-up items Check-up content Check-up purpose Routine blood test, including blood type and ABO hemolysis titer. The test is for women with blood type O and husbands with type A or B, or with a history of unexplained miscarriage. Early detection of blood system disorders and help to detect carriers of thalassemia; avoid hemolysis in infants. Reproductive system examination Screening for trichomonas, mycobacteria, mycoplasma-chlamydia infection, vaginal inflammation and other diseases through routine white belt screening. Check for gynecological diseases, early detection and early treatment before pregnancy. Liver function tests Liver function tests include both large and small functions. Large liver functions include full set of hepatitis B, blood sugar, bile acids, etc. If the mother is a hepatitis patient, it will not only cause premature birth of the fetus, but also inherit to the child. Urine routine mainly check the kidney function. Pregnancy will lead to accelerated body metabolism, whether the kidney function is normal is directly related to the health of the pregnant mother and baby Chromosome abnormalities Check for hereditary diseases Couples of childbearing age with a family history of hereditary diseases check for chromosome abnormalities Complete set of abnormalities including rubella, toxoplasmosis, cytomegaloplasmosis and toxicity. 60% to 70% of women will be infected with rubella virus, once infected, especially in the first trimester, it will cause miscarriage. Once infected, especially in the first trimester, it can cause miscarriage and fetal malformation. Male pre-pregnancy checkup items: Checkup items Checkup content Checkup purpose Liver function The liver function checkup includes two kinds of large and small functions, the large liver function includes the full set of hepatitis B, blood sugar, bile acid, etc. Liver function diagnosis Chromosomal abnormalities Check for hereditary diseases Check for chromosomal abnormalities in couples of childbearing age with a family history of hereditary diseases Routine semen examination Check for general sperm traits, survival rate, morphology, etc. Check whether male sperm meet the requirements for pregnancy Urinary system Including penis, urethra, testicles, etc. Check for cryptorchidism, orchitis and other diseases affecting fertility Blood routine 18 items of male blood routine Check for male blood Normal preconception checkup Preconception checkup precautions for women: Women should fast and abstain from food and water from 0:00 on the day of the preconception checkup because liver, gallbladder and pancreas ultrasound examinations and blood tests need to be performed on an empty stomach. Women should avoid the menstrual period for preconception checkups, and it is generally recommended to conduct preconception checkups 3-7 days after the cessation of menstruation. Do not have sexual intercourse 3 days before the preconception test and do not wash your vagina the day before the test. Eat a light diet 3-5 days before the checkup and avoid eating foods containing blood such as pig liver and pig blood. Ultrasound examination requires holding urine, so be careful to bring enough drinking water. Also receive a small amount of morning urine in the morning for the urine test. Pre-conception test precautions for men: Men should pay attention to ensure a regular and healthy life before the pre-conception test, avoid staying up late, smoking and drinking; at the same time, they should try to quit smoking and drinking six months before preparing for pregnancy. You should not have sex 3-5 days before the preconception test. Abstinence for too short or too long may affect the quality of sperm. Blood draws and some ultrasounds require an empty stomach, so don’t eat after dinner the day before the test and make sure you fast for more than 8 hours before the blood draw. Keep your body clean and take a bath the day before the test.