In 2016, the country allows and even encourages the birth control policy of two children will be introduced, which is undoubtedly the greatest good news for families who want to have two children, but there is also melancholy, because the one-child birth control policy for many years makes some couples older, worried about not being able to conceive, worried about difficult births, worried about giving birth to unhealthy children, and even worried about children growing old before they have time to care, etc. This article only from a medical point of view, a simple analysis of the preparation for pregnancy In this article, we will briefly analyze the risks that families need to consider in order to properly prevent pregnancy. From a medical point of view, what can happen when preparing for a second child? How to prevent it? 1, infertility, ectopic pregnancy, fetal abortion (abortion) Generally speaking, the first child is considered after 2-3 years of age, and during this period, the couple should take contraception, even if the contraception is successful, but the woman will inevitably have the risk of pelvic inflammatory disease (this does not include those who have had abortions and IUDs to remove the IUDs to do uterine operations), and pelvic inflammatory disease may lead to partial or complete blockage of the fallopian tubes If the tubes are completely blocked, infertility is bound to occur; if they are incompletely blocked, ectopic pregnancy will occur, and pelvic inflammatory disease can involve the endometrium, which can cause abortion or spontaneous miscarriage, or even repeated abortions, which are all too common in clinical practice. How to prevent it? One, find a reliable hospital, especially a gynecologist of caliber, and do a serious gynecological examination to determine if you have pelvic inflammatory disease. If this doctor thinks you don’t have pelvic inflammatory disease, I suggest finding another gynecologist for confirmation. Because, with long years of conjugal sex, it is inevitable that there is no pelvic inflammatory disease. I also wrote an article exploring why chronic pelvic inflammatory disease is easily misdiagnosed and missed, which you can view. Men are prone to prostatitis after the age of 40 and inflammation can be transmitted from semen to women to pelvic inflammatory disease; secondly, once pelvic inflammatory disease is identified, a more effective and less adverse method of treatment needs to be found because, as my research has found, chronic pelvic inflammatory disease is easy to suffer from and difficult to treat, so I have made some innovations in treatment methods, you can visit my website and I will not go into details here; thirdly, after curing pelvic inflammatory disease Thirdly, after curing pelvic inflammatory disease, we should do tubal imaging to find out whether the fallopian tubes are open, whether one side is open or both sides are open, and whether there are fallopian tubes open but not open, which is the best way to avoid ectopic pregnancy and also an effective technical means to check infertility; tubal imaging, the traditional radiographic method used in most hospitals in the clinic, is not a good method because the patient has to undergo damage from radiation, which may induce cell Genetic mutations, and older women’s ovaries are more vulnerable to damage and can even cause ovarian hypofunction, as you can see in the article I wrote including case reports. Therefore, women should not be allowed to get pregnant for at least 3 months after radiography to prevent fetal malformations, etc. Fourth, once the fallopian tubes are confirmed to be patent by radiography, or at least one of the tubes is patent, ultrasound monitoring of ovulation is performed in the second month with a view to improving the accuracy and timeliness of conception while minimizing the occurrence of ectopic pregnancy and recurrence of pelvic inflammatory disease; my patients who have followed this method have been “hit by a shot” by their husbands. There are not a few of them. Fifthly, before trying to conceive, the male partner should check his semen for inflammation and both men and women should have a full set of eugenics checkups, including basic physical examination; sixthly, in the month of trying to conceive, the female partner should start taking folic acid to prevent neurological abnormalities in the embryo. Seventh, depending on the patency of the fallopian tubes and the site of blockage, selective laparoscopic or interventional treatment or in vitro fertilization is chosen. Due to the complexity of the situation, we will not explain in detail here. 2. About chromosomal examination For women who are over 40 years old or who have repeatedly suffered fetal loss, genetic chromosomal examination for both men and women can be considered if necessary. Although there is a risk involved, the latter is clearly unaffordable compared to the birth of a congenitally malformed child, and is the lesser of two evils. Although in clinical practice, chromosomal examination of both parents in cases of fetal abortion (mainly related to pelvic inflammatory disease) is rarely abnormal. 3.About difficult delivery and complications Older women need to undergo strict prenatal checkups to detect complications in time, in addition, the chance of difficult delivery increases due to the deterioration of physical strength and elasticity of labor tissues. 4. Is in vitro fertilization a permanent solution? It should be emphasized that some older people, for various reasons, choose to do IVF directly in the hope of improving their chances of success, but they do not know that chronic pelvic inflammatory disease is the natural enemy of successful IVF, therefore, even if they want to do IVF, they should cut on the basis of proper cure of pelvic inflammatory disease. There are also some ordinary precautions, such as quitting smoking and drinking, balanced diet, strengthening exercise, etc., which are no longer considered in this article.