Expert introduction, although not sure how it led to mercury temporarily infertile, but both have certain relevance, because mercury can affect sperm activity and the ability to reduce the number of sperm. He further explained, seafood heavy metal content high, frequent excessive to eat seafood products, absorb excessive of heavy metals can affect sperm quality, long-term accumulated inside body more serious damage to health. He recommended infertility problems are men less as far as possible high content of mercury in fish and seafood, 1-2 times per week, every 100 grams below, and don’t eat tuna, sword fish etc contain mercury quantity high fish.

Oviduct inflammatory cause ectopic pregnancy is nottaken lightly

For want of your baby’s female friends, it is the most terrible may not lead to infertility due to tubal inflammation, but dangerous ectopic pregnancy. Ectopic pregnancy about 98% occurred in tubal. In normal circumstances, oviduct through cilia swinging and tubal smooth peristalsis, the zygote, oviduct inflammatory conveyed to the uterine caused lumen occlusion, water retention or adhesion, all can interfere with fertilized ovum or sperm, the operation of the fertilized eggs arrive, cause uterine difficulties will arise and happen ectopic pregnancy. According to introducing, because the fertilized egg in non-reptured tubal preghancy is hard enduring, in postmenopausal 1-2 months, grew up the fertilized egg will can be broken fallopian tube, can cause massive haemorrhage, shock, or even life-threatening.

Carelessness caused oviduct inflammatory

Fallopian tube in the female reproductive system is the main part of eggs and sperm, with conveying fertilized egg and sperm storage, won can provide such physiological functions. Tubal obstruction are likely to cause any part of tubal dysfunction and cause infertility. At present, oviduct infertility cause much with sexual inflammation is given priority to, although cause inflammation many causes, but female friends don’t pay attention to protect yourself or acute tubal phlogistic treatment is not complete or not timely is lead to chronic tubal phlogistic the important reasons. Cause chronic tubal phlogistic pathogenic bacteria, viruses, etc have, which see most bacteria infection. The study found that these pathogens more again in feculent abortion, not whole abortion, abortion, and for infertility found in the many female friends to come round to see a doctor in previous miscarriages or multiple miscarriages have more experience of coincide, therefore, female friends don’t taken seriously abortion or in after miscarriage do not pay attention to rest, prevent infection may cause oviduct inflammatory.

In addition, because of the reproductive tract inflammation uplink infections, such as chronic cervicitis, endometritis, etc, also can cause oviduct inflammatory change, if treatment inappropriate or not thoroughly can develop to chronic tubal phlogistic. Tubal phlogistic can also because of fallopian tube around organ or tissue inflammation and secondary, especially in tubal umbrella department or ovarian inflammation adhesion, make forms around the umbrella department will not fallopian tube from the eggs of eggs and sperm inhaled meeting, cause infertility. And, due to chronic tubal phlogistic in clinical performance can be no obvious discomfort, so also easy to let a female friends ignore, thus missed the best treatment timing, cause infertility.

Inflammation from infertility big trouble analysis: prevent tubal phlogistic reduce pain

Because of tubal phlogistic is easy for women neglect of disease, besides bring ectopic pregnancy risk, still can bring the pain of female infertility, even endanger the happiness of the family. Clinically because of many female infertility to arrives just discover is caused by the tubal phlogistic, when they had missed the best treatment and inoculation timing, some female friends so and embarked on a long road integration-disintegration.

Menarche mo anxiety

General woman in age 14, menstrual menarche, will is a normal physiology phenomenon, which is the symbol of the reproductive system is already gradually mature, need not worry. But, some lack of physiological knowledge girl this feel shy, and thus back ideological baggage, every period, anxiety-ridden, not even food down, sleepless, in the long run, it happens TCM so-called “and”; Qi stagnancy and then blood stasis, blood stasis could damage the cell lines, cell lines impaired, afterwards infertility. Therefore, the young girl menarche, attention shall be paid to understand this aspect of physiological knowledge and processing method, which will eliminate worries, married natural easily conceive.

Exquisite menstrual health

In menstrual cramps period, if you don’t pay attention to hygiene, that is easy to various diseases, such as menstruation, dysmenorrhea, vulvae inflammation, vaginalitis, cervical disease, endometritis, pelvic inflammatory disease, annex inflammation, etc, these symptoms are hamper married conception. So, how should the exquisite sanitation during menstruation? Overall, mentally keep optimistic repose. On the body should pay attention to proper rest, avoid tiredness, In the diet should warm, avoid cold, In daily life appropriate on law, comfortable, avoid sit lie wetland or rain wading, additional, menstrual belt to frequently wash, underwear and toilet paper frequently change) body shower shoulds not be too frequency, lest catch cold catch a cold.

Menstruation should be conducted

Menstruation refers to menstruation, classics color, by volume change occur, or amenorrhoea, dysmenorrhea, uterine etc, infertile women mostly exist to varying degrees with these phenomena. Therefore, it can be said that menstruation is infertility signal. Girls with menstruation reason comparison is pure, the treatment is easy. So, the young girl with menstruation when, want to early treatment, strive for a cure, mo leave for the future. Can adopt TCM treatment, general effect is good.

Menstruation comes late to marry at a mature age

Some girls menarche time is late, until 18 ~ 20 years old later only saw menstruation, and quantity is little, lubricious weak, qualitative dilute. This shows that the function of the reproductive system, marriage hind low can only pregnant and menstrual condition deteriorated, until amenorrhoea or concurrent other disorders. So, every menstruation comes late, and developmental comparative slow girl, should seriously exercise, appropriate complementary with drug recuperation.

Prevent reproductive system infection

The reproductive system infection of a serious consequence is probably infertility. Pelvic, cervical inflammation can affect ovarian function and tubal, adolescent girls’s reproductive system in a rapidly changing period, if lack of protection, happen reproductive system is the risk of infection will significantly increased.

Above all, want to prevent external genital infection. Girl perineum thin skin tender, no fat pad and pubic hair, lose the protection, easy cause damage and infection. Professor xu said, now many girls wear jeans, popular tights, wear too often too much, easy to cause the vulvae inflammation, this kind of inflammation can spread into the vagina, then have been reach cervical, pelvic, regardless of mould sex or infusorians sex, may affect the following birth.

Still have even notice period health. Face “menarche” advent of panic will make girls are helpless, if we do not pay attention to health, very easy problems. As use of the strict disinfection sanitary napkin, menses regular cleaning genitals, avoid strenuous sports, don’t swim, these questions are very important.

In addition, to avoid premature sex. Abortion is easy to cause genital infection, qing surgery may also damage the endometrium, these may cause infertility.

In addition, of the menstrual law did not aware. Girl menarche within two years after menstruation setting, are at a few months to may, also can suddenly JianLiang very big, because they are the hypothalamus – pituitary – ovarian reproductive endocrine shaft function is unsound. But if more than two years is still very disorderly, elucidation has a problem. Even in two years, within the scope of irregular menstruation, also must make to the hospital early check, see are functional or organically. Moreover, long-term vaginal irregular haemorrhage, also make the possibility of pelvic infection occurred increases. Many girls afraid of pelvic examination is unnecessary is bad.

TB on bearing a threat

Against tuberculosis is the important measure to prevent infertility. Now the tuberculosis has looked up trend, n/med tuberculosis influence the first is lung, quickly followed by pelvic, occurred pelvic tuberculosis, will affect ovarian, uterus, then affects pregnancy. In an outpatient setting sometimes will meet for infertility patients visited, traced back but found youth had tuberculosis, passed without treatment or no cure.

TB disease often among young people is more, it occur in a few years to ten years old, sometimes twenties, but generally young trend more apparent. Adolescent girls originally is in growth phase, at risk of infection with age, so teenage must notice period health, increases resistance to illness, vigilance contact tuberculosis, otherwise endometrial uterine of n/med tuberculosis bacterium infection, by recovery was more difficult.

Some body infectious disease also have to be careful. For example, through the cycle can bacteremia affluence into pelvic cavity.

Malnutrition affect future pregnancies

Prevent infertility, nutrition is also need to pay attention to the important factors. Malnutrition can affect oulation and homone secrete, resulting in menstrual disorders, even can be completely not ovulation, nature will affect fertility. Always think children grew up, and parents to this period children for their caring enough.

Now the wind of reducing weight is more popular, but many girls drug reducing weight reduction to certain degree will appear a few symptoms, may also cause infertility. Because body sex hormones some are protein synthesis, protein is insufficient, sex hormones produce can decrease, then affects the entire reproductive functions. Some of the girls have weight can reduce it to anorexia nervosa, this is highly desirable.

Of course, too fat can also cause menstruation is not normal, and often ovarian also appear problem, development on May also affects pregnancy.

1. Cause of female infertility causes

(1) vulva vagina causes of infertility:

① vaginal inflammation: There trichomonas vaginitis and fungal vaginitis, the light does not affect the pregnancy, in severe cases there is a large number of leukocyte depletion of energy substances in semen, sperm activity decreased, shortening the survival time, or even swallow sperm and affect fertilization.

② vulva, vaginal dysplasia: include true hermaphroditism hermaphroditism and pseudohermaphroditism, testicular feminization of the latter, such as congenital adrenal hyperplasia, ovarian and other masculine.

Hymen dysplasia: imperforate hymen, hymen so hard.

Vaginal dysplasia: congenital complete or partial vaginal atresia, double vagina or vaginal septum.

③ scar stenosis: the formation of adhesions after injury vaginal scar stenosis affect the sperm into the cervix and affect fertilization.

(2) causes cervical infertility: sperm into the uterine cervix is the way, the amount and nature of cervical mucus can affect sperm into the uterine cavity.

① cervical inflammation: severe cervical canal increased purulent vaginal discharge, sticky, affecting sperm penetration.

② cervical dysplasia: congenital cervical stenosis or atresia, the light excluded poor blood through decreased, dysmenorrhea, may be complicated by endometriosis. Cervical dysplasia, slender, affecting sperm through; cervical mucous gland secretion is inadequate dysplasia.

③ cervical neoplasm: cervical polyps, cervical fibroids blocking cervical affect fertilization.

(3) uterine factor infertility caused by:

① uterine cancer: endometrial cancer, infertility caused by endometrial hyperplasia patients with the majority of infertility, uterine fibroids can affect fertility, fibroids can cause submucosal pregnancy after infertility or miscarriage.

② uterine congenital anomalies: uterine abnormalities such as congenital absence of uterus, rudimentary horn, bicornuate uterus, septate uterus, all affected pregnancy.

③ endometrial abnormalities: endometritis, endometrial tuberculosis, endometrial polyps, endometrial adhesions or endometrial secretion and poor response to impact of fertilized egg implantation.

(4) tubal causes of infertility: fallopian tube sperm with delivery, pick up eggs and the eggs transported to the uterine cavity function. Tubal disease is the most common factor infertility, tubal function of any factors that affect the impact of fertilization.

① salpingitis: salpingitis can cause adhesions or distal lumen obstruction, tubal adhesions with surrounding tissues affect peristalsis and infertility. Fallopian tube fallopian tube stiffness caused by tuberculosis, fistula, etc..

② tubal dysplasia: impact of tubal peristalsis dysplasia, is not conducive to delivery of sperm, eggs and fertilized eggs are prone to ectopic pregnancy; over slender distorting effects of congenital tubal sperm or egg run.

③ around tubal disease: A multi-endometriosis, ectopic endometrium to form nodules in the fallopian tubes or pelvic adhesions tubal ectopic endometrium caused.

(5) infertility caused by ovarian factors:

① Ovarian dysplasia: ovary, ovarian development and ovarian hypoplasia not.

② luteinized unruptured follicle syndrome (luteinized unruptured follicle syndrome, LUFS): Brosen guess LUFS pathogenesis of endometriosis is one of the factors, based on LUFS were not as follicle rupture, ascites in 17-β estradiol and progesterone ketone is less than normal, loss of ectopic endometrial cell proliferation in force, ovarian anovulation.

③ endometriosis: the traditional view that endometriosis shall exceed uterine endometrial range (not including the myometrium) and external growth. As with the growth of endometrial tissue function appears in the mucosa lining the uterine cavity than other parts of the body, known as endometriosis (endometriosis). Endometriosis and infertility between Tianjin and Shanghai, according to two reports, patients with endometriosis primary infertility and 41.5% to 43.3%, 46.6% secondary infertility 47.3%, while the normal rate of 15% of the population infertile. Severe adhesions caused by endometriosis, affecting ovarian function, prevent egg maturation and release.

④ inadequate luteal function: Ectopic secretion of patients with inadequate luteal phase affected pregnancy.

⑤ ovarian tumor.

(6) infertility caused by ovulatory disorder: cause of ovarian dysfunction Erzhi can not factor in ovulation infertility.

① systemic diseases: severe malnutrition, obesity or a diet lacking certain vitamins, especially E, A and B, can affect ovarian function; endocrine metabolic diseases such as hyperthyroidism or low adrenal hyperfunction or lower, severe diabetes, can affect ovarian function leading to infertility.

② central effects: hypothalamus – pituitary – ovarian axis disorder, caused by menstrual disorders, such as anovulatory menstruation, amenorrhea, etc.; pituitary tumor in ovarian dysfunction Erzhi infertility; mental factors such as excessive stress, anxiety on the hypothalamus – pituitary – ovarian axis may affect, inhibit ovulation.

③ ovary factors: congenital ovarian hypoplasia, polycystic ovary syndrome, premature ovarian failure, functional ovarian tumors, such as particles – theca cell tumor, neuroblastoma and other testicular effects ovulation; ovarian endometriosis is not only destruction of ovarian tissue, and can cause severe pelvic adhesions Erzhi infertility organization.

2. Lead to male factor infertility
Main obstacles to spermatogenesis and insemination. External genitalia, and semen should be held in check, clear whether the abnormality.

(1) semen abnormalities: the absence of too few sperm or sperm count, decreased activity, abnormal shape.

The factors affecting sperm production:

① congenital abnormalities: Klinefelter’s can not produce sperm; bilateral cryptorchidism led to the seminiferous tubular atrophy, impede sperm production.

② systemic factors: chronic wasting disease, such as long-term malnutrition, chronic intoxication (smoking, alcohol), psychological stress may affect sperm production.

③ local reasons: mumps orchitis leading to testicular atrophy complicated; testicular damage testes tuberculosis; varicocele sometimes affect sperm quality.

(2) immune factors: sperm and seminal plasma in the body produce antibodies against their own sperm can cause male infertility, sperm injection self-aggregation can not occur through the cervical mucus.

(3) disruption of sperm transport: can tuberculosis epididymis and vas deferens vas deferens obstruction, obstruction of sperm through; impotence, premature ejaculation can not make sperm into the female vagina.

(4) Sexual Dysfunction: external genital dysplasia or impotence caused by sexual difficulties.

(5) endocrine dysfunction: male endocrine by the hypothalamus – pituitary – testicular axis adjustment. Pituitary, thyroid and adrenal dysfunction may affect sperm production and cause infertility.

3. Male and female infertility caused by common factors

(1) lack of basic knowledge of sex life.

(2), hope both men and women eager child caused by psychological stress.

(3) immune factors: immune factors in recent years that there are two types of immunity affects pregnancy.

① the same kind of immunity: sperm, semen, or fertilized egg is antigenic material, is absorbed by the vagina and endometrium, antibody material produced by the immune response to sperm and eggs or fertilized egg can not be combined with implantation.

② autoimmunity: that there is transparency in infertile women with serum autoantibodies, and the zona pellucida sperm penetrate the egg to prevent the reaction, thus preventing fertilization.

4. Other factors that affect pregnancy
General factors affecting pregnancy is ruled out reproductive system abnormalities or organic disease of reproductive system affect fertility, as well as the following factors can affect fertility.

(1) Nutrition: Nutrition and reproductive function of close, it was reported in the literature, marriage, severe malnutrition, anemia, weight loss and the economic backwardness of women living in poor areas of low fertility or infertility. But the other extreme is the nutrition that obesity also can cause gonadal dysfunction, infertility or reduced fertility.

(2) Age: male fertility age of 24, most 25 years, female 21 to 24 years old. According to some scholars to statistics, both male and female fertility before the age of 35 no significant differences in reproductive capacity after 35 years of age decreased, the incidence of infertility may be increased to 31.8% after 40 years of infertility up to 70% to pregnancy after the age of 45 seldom.

(3) psychological factors: Some studies have found that psychological stress or excessive worry, anxiety, mood disorder caused by women, and various mental disorders, followed by the neuroendocrine system of the hypothalamus – pituitary – ovarian endocrine balance between the impact, resulting in without ovulation, and amenorrhea and infertility.

(4), trace elements and vitamins: In recent years, many scholars noted that trace elements zinc, manganese, selenium, copper and other elements, as well as vitamin E, A, C, B12, etc. and the male and female sexual function, sex hormone secretion closely related to the maintenance of these trace elements and vitamins on reproductive endocrine function of the human body and hypothalamus – pituitary – gonadal axis play an important role in the coordination. If a serious shortage of trace elements and even vitamin deficiency can also cause infertility or reduced fertility capacity.

(5) Other aspects: male or female, if there is bad habits will affect their fertility, such as long-term smoking, drinking or contact with narcotics, toxic substances, on the fertility of men and women there are also negative effects, as well as environmental and occupational of pollution, such as noise, chemical dyes, mercury, lead, cadmium also can affect women’s fertility.

Infertility is caused by a variety of diseases and causes, so different pathogenesis.

Many women that the use of health-care lotion is a cleaning fashion, is good hygiene practices, in fact, use the lotion washed clean, but too bad.

1, increasing the incidence of sexually transmitted diseases

By custom or misleading, the unclean sexual intercourse, the women mostly with vaginal washing fluid, one to prevent pregnancy is the fear of infection on two sexually transmitted diseases, but medical findings opposite. Women had prenatal medical analysis found that regular use of vaginal washing fluid of women suffering from it increased the risk of sexually transmitted diseases, but after sex vaginal washing with water is not dangerous. The survey also shows that destruction of the vaginal fluid pH (pH), bacteria will inevitably grow rapidly, so the infection rate of sexually transmitted diseases increase. And clean water did not change the pH of the vagina, it will not disrupt normal vaginal flora.

2, destruction of micro-ecological environment in the vagina

Vaginal microbial flora in the vaginal wall mainly inhabit the mucous membrane, fold in, followed by the vaginal vault and cervix Department. Vaginal discharge in healthy women living bacteria number is 100 ~ 100 million / ml. The currently accepted normal vaginal flora is the most important members of the lactic acid bacteria, their number up to 80 million / ml, and its main function is to protect the vagina from the invasion of foreign bacteria, is the vagina’s “health guards”, so medical often vaginal secretions to determine the number of lactobacilli vaginal cleanliness and self-cleaning feature to judge good or bad vagina. Some scholars have investigated 40 healthy women of reproductive age, 92.5% have a lactic acid bacteria, which is only 60% of menopausal women. If you frequently use the vaginal cleaning vaginal washing fluid, lactic acid bacteria will be less.

Recently, scholars have analyzed 30 years of women reported vaginal washing, found that one or more a week washing, could significantly increase the chance of pelvic infection, ectopic pregnancy increases the risk of moderate, more frequent irrigation, the risk of pelvic infection greater. This is due to destruction of the vaginal fluid of self-cleaning function, leading to pathogens take advantage of the upward along the cervix to the uterus and fallopian tubes, cause pelvic infection.

3, lower fertility

According to observation that married women with vaginal washing vaginal fluid of women, is expected to decrease by 30% per month of pregnancy, the young are even lower than the elderly. The reason may be the vaginal pH and micro-ecological environment changes, the growth of pathogenic bacteria breeding, resulting in the occurrence of a disease, eventually leading to infertility.

Because the normal vaginal flora has a “self-cleaning feature,” Under normal circumstances, without flushing the vagina with fluid. Patients suffering from various diseases for therapeutic purposes, under the guidance of the medical treatment of washing agent used is necessary, but never long-term use.

4, how to select Jieyin supplies

Must go to pharmacies to buy regular informal qualified manufacturers of brand, in order to avoid harm to the body and inferior products.

If a pregnant woman during pregnancy vaginal discharge abnormal vaginal itch symptoms, not the situation in the absence of medical advice to buy Germ lotion, to prevent fetal development impact.

Women with vaginitis may choose to go to the hospital before the doctor diagnosed, in order to take a targeted therapy.

1, blocked fallopian tubes
The causes of infertility, 2 / 3 is the woman’s fallopian tube obstruction, but since the general emphasis on broad-spectrum antibiotics to prevent infection and its inception, causing inflammation of fallopian tube obstruction obstetrics gynecology have been greatly reduced

2, ovarian factors of infertility
Understanding of the endocrine diseases and examination of technology continues to progress, ovarian dysfunction, infertility due to diagnosis rate has increased, so ovarian infertility also occupies an important position. Ovarian factor infertility caused by infertility accounts for about 15% to 25% of ovarian infertility can be caused by several factors:

1, ovarian local factors
Such as the congenital absence of ovaries or immature-type ovaries, premature ovarian failure, polycystic ovary, some ovarian tumors, such as particles – egg, bubble film cell tumor, testicular neuroblastoma, etc., can affect ovarian hormone secretion and ovulation.

2, systemic disease
Such as severe malnutrition or a diet lacking certain important factors that can affect the nutritional infertility ovarian function Er Zhi.

3, chronic diseases, metabolic diseases
Such as diabetes, hypothyroidism, or adrenal dysfunction such as hyperthyroidism can also lead to infertility.

4, central effects of
Between the hypothalamus pituitary ovarian endocrine imbalance, pituitary tumor or scar may cause ovarian dysfunction, infertility Erzhi

Infertility causes one: abortion

Abortion cause pelvic inflammatory disease, tubal results bring disaster – our bodies are very important to the fertility channel, and its diameter of only a ball-point pen core thickness. After the inflammation caused by tubal blockage, and hence infertility.

Medical abortion than surgical abortion in greater danger, because the bleeding time longer and more chances of infection.

In addition, if repeatedly done abortions, the function layer of the uterus will become infertile, pregnancy, the embryo is like a stone ground of the trees, in order to get more nutrients into the deep to be hard to take root. Childbirth, the placenta can not be automatically delivered, even heavier, it became “placenta accreta”, placenta and uterus grow into one, the doctor has had to hysterectomy. The frequency of abortion and the future is directly proportional to the risk.

Infertility causes 2: Smoking

Pregnancy is a natural physiological process, most women can easily spend 10 months, while the smoking woman, prone to pregnancy complications.

Nicotine and nicotine cause systemic vascular disease, uterine blood vessels and therefore involvement. Prone to early pregnancy, abortion; to medium term, happen “pregnancy-induced hypertension,” the risk of larger, systemic vascular spasm, increase blood pressure. Pregnancy-induced hypertension during pregnancy, one of the most dangerous complications.

Long-term smokers will harm the body’s hormonal system as a whole, affecting ovarian function, leading to endocrine causes of infertility. We all know that smoking woman looks premature aging, but this is only the performance of the external body, reflecting the internal ravaged hormone system – rely on the face of a woman glossy estrogen to moisture.

One of my patients, have a happy family and successful career, but she felt an irreparable regret, from 37 years old, she had a whole for the treatment of infertility struggle three years.

Initially, it was discovered both sides of the fallopian tube block-up, one side completely blocked by the other side there are adhesions – which is likely to be an abortion many years ago left behind, although when she quickly recovered her health. Therefore, she decided to accept the test-tube babies, but unfortunately, the examination revealed that she endocrine system disorders, not only affect ovulation, and even the success of artificial insemination, will be planted in the uterus where a fertilized egg, it is difficult to keep the child.

One of the hormones – follicle-stimulating hormone levels higher than normal, this would generally only in post-menopausal women to appear. Hormone level is not normal, long-term smoking with her great relationship, although she was pregnant in order to have completely quit smoking three years, and the body is still left with the hazards of nicotine.

She was very sad when you find me, tell me: “For me, fell pregnant with no pregnancy is not a major problem, but I am just 40 years old, the body is like post-menopausal women, like aging, psychological, is not acceptable!”

Infertility three reasons: age over 35 years of age

When I became a gynecologist, the women were more in 25-year-old child-bearing; 20 years have passed, the average age of childbearing had been delayed for about five years, more than 30-year-old children is very common.

From a woman’s physical laws, the reproductive capacity of the strongest in 25 years, slow decline after the age of 30, 35, declined rapidly after the age of 44 years of age, 87 percent of the women lost the ability to conceive.

Recent foreign made an experiment in vitro to artificial insemination, the eggs of women over 40 years old and young men’s sperm for a group of 30 women under the age of the egg with the sperm of a man aged over 50 to another group, the success of the latter rate was significantly higher than the earlier ones. This shows that the fertility age women a greater impact.

For the men, the sperm will be updated once every 30 days, while for women, from birth, eggs accompanied with our players, our way of life, environment, age will affect the quality of eggs. More than 35 years of age, which means the egg has already withstood 35 years stay with you for the air pollution, ionizing radiation, various chemical substances, chromosomes will greatly increase the chance variation.

Over the age of 35, pregnant women are usually after some planning, especially heavy blows! Therefore, if the mother’s intention, the best child-bearing age is 26 ~ 30 years old, if the conditions are not yet ripe can also be possible from the living habits and behaviors to delay the age of the body to bring changes.