1, not to conceive emotions repressed: people once in anxiety and depression and has a heavy burden of mental state, will not only affect the quality of sperm or eggs, even after pregnancy can affect the mother\'s hormones due to emotional stimuli, making fetal unease, restlessness, affecting the growth and development, and even abortion. When there are unpleasant things so when small family, it is best to avoid for the time being pregnant.
2, when not in honeymoon pregnancy: as before and after the wedding, men and women both sides to make arrangements marriage, manners are socializing while running hard, welcome and send off, overload of physical consumption, reducing the quality of sperm and eggs. When honeymoon sex frequently, also affect the sperm and the egg in the uterine implantation of environment, reduced fetal egg quality, which is not conducive to eugenics.
3, not illness during pregnancy: because the diseases affect the quality of physical and fertilized eggs and implantation in utero environment. Illness during the taking of drugs may have an adverse effect on sperm and eggs. Therefore, the spouses was suffering from acute disease, need physical rehabilitation, such as withdrawal and conceived by consent of the doctor and then taken into account.
4, do not travel during pregnancy: as people travel daily on the way there is no law, no fixed abode, getting enough sleep, eating disorders, nutritional deficiency, keep the brain cortex in an excited state. Coupled with excessive fatigue and the road bumps, conceived can affect fetal growth or eggs cause uterine contractions, resulting in abortions or threatened abortion.
Conceived by 5, not old age: as women aged over 35 chromosome aberration occurs as a result of malformation fetus is increased by the ratio of trend, so the best women\'s reproductive age is 24-30 years.
6, do not stop using contraceptives immediately after pregnancy: contraceptives suppress ovulation, interference of fertilized eggs of endometrium implantation environment effects. Long-term oral contraceptives for women, at least in withdrawal after two months in order to conceive; set loop after the removal of women, should be to 2-3 times normal menstruation and pregnancy again. This will enable the endometrium and ovulation has a recovery process of adaptation, conducive to growth and development of fertilized eggs.
7, do not in preterm birth, miscarriage and removal of hydatidiform mole immediately after pregnancy: women in endometrial of the trauma after preterm birth, abortion, pregnancy easier abortion again immediately to form the habitual abortion, miscarriage or early postpartum for the first time again after at least six months pregnant, this process of intrauterine environment have a full recovery. After removal of hydatidiform, had originally concealed in the trophoblast cells in venous Plexus, after a period of time (in 1-2), can be active again and even malignant changes have taken place. Therefore, patients with hydatidiform mole after the operation, to prevent them developing into malignant mole or membrane epithelial cancer, regular follow-up of at least two years, during this period must not be pregnant.
8, do not contact before the conception of radioactive substances and toxic substances: because the germ cells is very sensitive to reactions to the x-line and highly toxic substances. Women irradiation x line, particularly after abdominal irradiation, needs better security after 4 weeks. If you have repeated exposure to drugs and toxic chemicals, also need to wait a month of conception is more appropriate, so as not to give birth to abnormal fetus.
9, do not in the hot and cold seasons pregnancy: pregnancy early, preliminary stages in the formation of the cortex of the brain of the fetus. Comparison of hot, poor appetite, reduced protein intake, consumption of the body, can affect fetal brain development. Cold season pregnant women in indoor activities, less fresh air, exposure increased respiratory viruses, easy to catch a cold, and damage the foetus.
10, not smoking and drinking: because the nicotine in tobacco and alcohol in wine can damage sperm cells and egg cells. Often women smoking, alcohol consumption, it is best to quit tobacco and alcohol, such as 2-3 months after conception. Husband wife conceived one month before finally quit alcohol and tobacco.
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