Pre-conception check-ups are usually done in the fertility department or, if there is no fertility department, in the gynecology clinic. Pre-conception check-ups are required for both men and women. Perfect preconception checkups play a very important role in eugenics. Usually preconception checkups are recommended 3-6 months before you want to get pregnant so that abnormalities can be detected and treated and corrected in time. It is important to have a healthy body to prepare for pregnancy. If you want to perfect the preconception test, it is recommended that women can choose to go to the hospital on an empty stomach on the 2nd-4th day of their period, or they can come to the hospital 3-7 days after their period is clean. Do not have sexual intercourse 5 days before the test, and pay attention to a light diet before the test, do not eat too much greasy or cold food to prevent the test index from being affected; pay attention to rest and keep a happy mood. If you need to do a chest X-ray, do not wear clothes with metal buttons, bras, and try not to bring jewelry. For men, abstain from sex for 3-7 days before the preconception test, when the semen routine test can be performed. Again, try to come to the hospital on an empty stomach. For men, the test is less frequent than for women, however, it is also important to eat a light diet before the test. Therefore, it is necessary to perform preconception tests 3-6 months before a woman is ready to get pregnant, and if abnormalities are found, a certain amount of time can be given for treatment, and a regular gynecological or reproductive consultation is recommended.