Do mothers who are preparing for their second child need preconception tests? 1.Sex life is longer and there are more chances of contacting pathogenic bacteria, so they are vulnerable to various pathogens and therefore need to be tested for gynecological inflammatory infections and teratogenic viruses. 2, age is generally older than the first mother, prone to endocrine disorders, the function of various organs may appear abnormal, prone to obesity and other problems caused by high blood lipids, high blood sugar or pre-diabetes, so need to carry out ovarian function, thyroid, glucose, blood lipids and insulin metabolism testing. 3. As we age, some gynecological diseases are likely to come to us, such as uterine fibroids, endometriosis, adenomyosis, abnormal fallopian tubes, etc. Because these may affect pregnancy, a simple gynecological ultrasound examination can make a preliminary judgment, and if necessary, tubal imaging and other tests can be performed. 4. If you have a history of other diseases, it is best to assess your current status before pregnancy, whether there are any contraindications to pregnancy and whether you need early treatment. 5.If there is any history of hypertension or diabetes during pregnancy or other abnormal pregnancy and delivery, it is better to go to internal medicine, obstetrics and prenatal diagnosis department for relevant consultation to prepare for the conception of the second child. How long after the first child can I have a second child? This question depends on the mode of delivery of the first child. For vaginal births (normal births), you can usually have your second child after one year. For a cesarean delivery, it is best to allow 2 years between births. For those with a history of multiple cesarean sections, a longer period of time is needed and the risk of delivery is higher. Because it takes time for the uterus to fully recover after a cesarean section, the risk of uterine rupture can easily occur if you get pregnant too early. In addition, the rate of cesarean delivery in China remains high, and scar pregnancy at the cesarean delivery is common, which can be an ectopic pregnancy! Therefore, mothers with a history of cesarean section are advised to see a specialist to assess the scar recovery before preparing for pregnancy, and hysteroscopy is feasible if necessary. In addition, mothers with a history of cesarean delivery are prone to pelvic inflammatory disease, endometriosis, and adenomyosis, if any of these problems may affect the process of second pregnancy. How long do I need to go to the hospital for examination and treatment if I am infertile? Infertility is defined as a couple who have been sexually active without contraception for more than one year without getting pregnant. The incidence of infertility is gradually increasing and has reached 10-15% in China. The term “normal sex” is used here to refer to a regular sex life (preferably once every 3-4 days) in which the male partner is able to ejaculate normally in the vagina. Adequate and regular sex is also good for men to maintain good sexual function and improve sperm quality, which is also conducive to a successful pregnancy. If this is not possible, it is recommended that couples work together! If you can’t do it, you need to go to the hospital. Since senior women need to race against time more, senior couples who have been preparing for pregnancy for more than six months and are infertile can undergo infertility-related tests in advance. Especially for women with a history of multiple miscarriages or ectopic pregnancies or a history of pelvic inflammatory disease or dysmenorrhea or altered menstrual cycles, it is necessary to exclude tubal abnormalities, endometriosis or adenomyosis, hypovarianism or polycystic ovary syndrome, which may affect causing infertility. If there is a past history of specific diseases (such as thyroid disease, history of tumor surgery, diabetes, hypertension, heart disease, etc.) or a history of long-term medication, it is recommended to visit a specialist first to clarify whether the pregnancy can be tolerated again and the possible effects on the fetus. What should I do if I want to have a second child after having a tubal ligation? After tubal ligation, both fallopian tubes are blocked, so the “bridge” for sperm to meet the egg is broken. The main methods to have another baby are tubal revascularization and IVF. Before undergoing tubal reversal, it is recommended to analyze the pros and cons of the procedure, as the “biological age” and “ovarian age” of a woman are too old to wait, and repeated attempts may end up costing time, money, and energy without results. Firstly, the ovarian function of the woman should be evaluated; secondly, the presence of dysmenorrhea, fibroids, adenomyosis, endometriosis and other factors that may affect pregnancy should be assessed; and again, the quality of the male partner’s sperm should be taken into account, as there is no point in doing the surgery if the sperm quality is poor. It should also be noted that whether tubal ligation can be applied or not is related to the surgical method of ligation (such as the part of the ligation and the length of the remaining fallopian tube) in that year. Therefore, it is not advisable to opt for reversal of tubal ligation. In case of reduced ovarian function, other factors of infertility and poor quality of male semen, it is recommended to opt for IVF to help conceive. Should fathers who are expecting their second child be tested? Men love to save face, and there is no excuse for that. Many people always think that they can have one child, so the second child must be fine. But this is not the case! Therefore, it is better for these men to have semen examination in advance. Couples performing intercourse also need to pay attention to the mutual transmission of inflammatory diseases, such as mycoplasma and chlamydia, so early examination is also recommended. If there is a history of previous specific diseases (such as history of tumor surgery, diabetes, hypertension, heart disease, etc.) or a history of long-term medication, it is recommended to visit a specialist first to clarify whether it affects sperm quality.