Does taking birth control pills affect the health of children who become pregnant again? Which groups of people are not suitable for using contraceptives

During pregnancy, drugs can directly have adverse effects on the embryo through the placental barrier. Artificial hormones are usually used as hormone components in birth control pills, rather than natural hormones. These synthesized sex hormones may have certain effects on the fetus, such as feminization or feminization, female reproductive tract abnormalities, and male testicular underdevelopment. Birth control pills can also indirectly affect embryo development, such as natural abortion.

2. The effect of drugs on embryos is closely related to gestational age. In the pre implantation stage, within 2 weeks after fertilization, the fertilized egg does not have direct contact with the mother's tissue and is still in the secretions of the fallopian tube or uterine cavity. Therefore, drugs used during this period have little impact on the embryo. In clinical practice, it is also known as full or no stage, which refers to the use of drugs during this stage. If the drug is highly toxic, the fertilized egg cannot be implanted and cannot continue to develop into an embryo; If the drug does not affect the implantation of fertilized eggs, the drug has little effect on the embryo. However, after implantation of the late embryo sac, fertilization occurs two weeks later, and the embryo establishes contact with the mother through the villi and placenta. At this time, pregnant women may take medication, which may interfere with the normal differentiation of the embryo or fetal tissues and organs. After contraceptive failure, whether a child can want this problem depends on whether the medication duration is full or indefinite.

3. A study in Shanghai will continue to conceive after the failure of emergency contraceptives, and compare it with the pregnant women who do not take emergency contraceptives. The results show that there is no significant difference between the two groups in the rate of spontaneous abortion and the rate of fetal malformation, the incidence rate of serious pregnancy complications, and the difference in the sex ratio of newborn boys and girls is not statistically significant. The research conclusion is that the emergency contraceptive levonorgestrel does not increase the incidence of fetal malformations, and the occurrence of adverse pregnancy outcomes does not significantly increase.

A study in the United States also suggests that women taking emergency contraceptives containing hormones will not cause harm to the fetus. The research results show that the weight and height of babies born to women who take emergency contraception are similar to those born to women who do not take emergency contraception. There was no statistical difference between the two groups in terms of stillbirth, birth defects, and pregnancy complications. Therefore, researchers believe that female friends who become pregnant after failing to take emergency contraceptives should not choose abortion due to fear of fetal malformations or other abnormalities. In general, abortion should not be chosen., Fetal abnormalities may be due to long-term use of hormones, rather than short-term use of low-dose hormones. Taking emergency contraceptives during the menstrual cycle has little impact on the fetus and can be considered. However, during pregnancy, we should conduct eugenics screening. If you took the emergency contraceptive pill 4 weeks after your last menstrual period, from the perspective of eugenics and fertility, young and healthy women can choose not to take it temporarily. Older women who find it difficult to conceive should consider having this child.