Whether you are pregnant with a second child or pregnant with a child, preconception checkups must be done, that is, preconception checkups are as follows: 1, gynecological ultrasound: to assess the uterus and ovaries, pelvis there are no problems, such as common uterine fibroids, many women have relatively large uterine fibroids, if after pregnancy, may occur during pregnancy fibroids degeneration or affect the fetal first dew drop, may lead to abnormal delivery, so do before pregnancy If there is ovarian cyst, it may cause the ovarian cyst to twist in mid-pregnancy or early pregnancy, which may lead to acute abdomen and also have adverse effects on pregnancy outcome, so gynecological ultrasound is very important and necessary. 2. TCT and HPV test: they are screening tests for cervical cancer, because nowadays, women are more and more likely to have cervical pre-cancer or cervical cancer, so if there is no problem with the cervix before pregnancy, it will be relatively relieved during pregnancy. If no TCTHPV test is performed before pregnancy, i.e. no cervical cancer screening, once cervical problems are found during pregnancy, it will be very difficult to deal with them clinically, for example, if cervical precancer or cervical cancer is found after pregnancy, it may lead to a dilemma whether to continue the pregnancy or to undergo surgery. There are still a lot of pre-pregnancy check-ups, and you should consult a professional doctor at a gynecological clinic for the specific kind of check-ups to be performed.