According to the World Health Organization, in the 21st century, it will become the third largest disease after tumor and cardiovascular and cerebrovascular diseases.At present, the incidence of non -willing infertility from all over the world is 7%to 46%. Although there are differences in different regions, the acceptable incidence rate is 8%to 15%.In my country, the lowest incidence of infertility was 1%to 2%in the 1970s, and it has increased significantly since the late 1980s and early 1980s.
By the 1990s, infertility in various nations across the country increased several times more than the lowest point in the 1970s to 8%to 10%, and some regions were more than 15%.The higher the industrialization, the more infertility, the more increasing.Why does the incidence of infertility increase significantly when the medical service level is continuously improved?
The environment ruins people's fertility
The biggest impact of infertility is the changes in environmental quality that people closely contact and depend on survival.
Today, human clothing, food, housing, and Xingxian are dealing with a variety of chemical supplies.These chemicals that affect people and other creatures (mainly animals) are called "environmental hormones". They mainly enters the body to play the role of estrogen -like (estrogen -like), which directly affects the reproductive ability of men and women.At present, more than a hundred chemicals that have been closely in contact with people have such a role. These substances importantly exist in plastic and plastic foam (white pollutants), detergent, asphalt, some additives, and chemical as the decorative products with raw materials as raw materials.In other substances.They mainly pollute water and enter the food chain through water, causing direct damage to humans to affect human fertility.
Men's infertility is mainly manifested in non -spermosis, young sperm, and patients with significantly increased patients.The decline in semen quality is generally existing in each man.At present, the indicators of semen quality evaluation can achieve almost it can be achieved (less than 5%), and it is very good to meet the normal standard lower limit of normal standards.
Researchers have found that in the past 16 years, the number of sperm in the sperm of normal adult men in my country has decreased by 20%, and sperm activity rate, normal morphological sperm percentage rate, and semen have decreased by about 10%.This shows that the quality of "seeds" of male sperm in my country in the 1980s is significantly "degenerating".
The latest survey analysis shows that the decline in the quality of men's semen may have exceeded the degree of acceptance.In 1999, at 100 kilometers in the east and west of Beijing, researchers chose to draw soldiers aged 18 to 25 in the rural areas (these soldiers enlisted by rural areas in other provinces and cities, and they were 16 to 17 years old.Forces of troops for more than 1 year can basically exclude unclean sex history after adolescence) for investigation.After collecting their semen for semen quality evaluation and comparing data from men in Beijing in the early 1980s, in the early 1980s.The number of object sperm in this survey decreases by more than 50%, the total number of sperm sperm each time decreases by more than 65%.%(Average of 40%), a percentage of normal sperm decreased by more than 20%(average of 65%), and a decrease of semen decreased by more than 20%(average of 2.8ml).This group's survey data is not enough to replace the overall situation of the country, but its results are enough to be "shocking."
In terms of female infertility, the number of patients with irregular menstruation and ovulation disorders have increased significantly. Patients in their twenties and thirties have experienced amenorrhea, scarcity of menstruation, and even premature ovarian function., Natural abortion, dead tires, poor embryo development, and fetal stopping significantly increased significantly.All these performances have a direct relationship with the deterioration of environmental quality, which is that environmental pollution has caused biological reproduction difficulties.
Infection causes difficulty in fertility
Another major influencing factors of fertility difficulties are derived from infection.The consequences of the harm of sexual transmission of men and women can not even know enough about the consequences of sexual communication diseases.The pathogens spread through sexual activity cause the cause of female infertility. The main causes of infertility are caused by female pelvic inflammatory disease, such as uterine cavity adhesion, cervical stenosis and fallopian tube obstruction, adhesion, and umbrella end function.This has become a direct reason for 50%of women infertility.The main causes of male infertility are male adenitis and infarction non -spermosis. The inflammation directly affects the ability and insemination ability of sperm. Toxins produced by inflammation also interfere with the potential of fertilization of sperm.In the United States, about 40%to 50%among women with active pelvic inflammatory disease can be found in cervical mucus positive in cervical mucus; 20%to 50%of women suffering from pelvic inflammation in Finland, Sweden, Britain, and the United States have clothEssence#S#In our country, those infected with primary infections in normal fertility accounts for about 15%to 20%, and those with infertility can reach 30%to 50%; chlamydia infection of clothing accounts for 5%to 25 among infertility and infertility.%; Data infection of gonococcus infection is still lacking, but it is estimated to account for 1%to 5%among the infertile.The transmission pathway of these sexually transmitted diseases in my country may have its own characteristics. It is by no means only through "sex" activities, which is related to the health conditions and lifestyle habits of the Chinese people.
Serum studies have shown that some areas in my country may have the epidemic of pathogens such as chlamydia and mycoplasma.This kind of disease is easy to spread in daily life whether cities, towns, rural areas, and various places.When healing such diseases, a lot of patients (even the vast majority of the vast majority) cannot be used to become chronic infections in the acute stage. At the same time, some diseases have never been seek medical treatment because there are no symptoms or symptoms without obvious symptoms.In addition, medical -derived cross infection also failed to pay attention.Often one party is infected without asking the spouse regardless of the situation, and the intrauterine treatment is performed without laboratory examinations, such as endometrial biopsy, fallopian tubal liquid or angiography and intrauterine treatment. From a medical perspective, this will cause harm.In addition to the transmission of diseases, the infection of raw worms, trichomonas, and fungi, and bacterial infections are also very common.
Reproductive health has been ignored for a long time
At present, the contradiction between the general delays of the age of adolescence and the age of fertility is more prominent than before, that is, the early development age, the early performance, the early sexual maturity, and the age of childcare, and the late childbirth, there are many problems.The results of the national survey of 29 provinces and cities in my country in 1999 showed that the average age of girls' menstrual tide was 13 years old, and they appeared as early as 8.9 years old. The earliest appeared at the age of 10.In 1997, the national population and reproductive health sampling survey data showed that the average national marriage age across the country was 23.4 years old (the city should be high), and 59.4%of women who married late after the age of 23.It can be seen that most women have to go through about 10 years after their sexual maturity before entering the role of marriage and childbearing (so of male teenagers).In the past ten to ten years, how to mature the sexual hygiene, sexual physiology, sexual psychology, sexual orientation, sexual ethics, and sexual health of each teenager, have an unparalleled impact on their life's fertility ability.
In my country's current education system, there are very few sex education, and many human knowledge is poor.The contradictions between sexual experience and undertaking maternity tasks, and contradictions with contraceptive nursery mission, and the contradictions of specific family planning policies are highly prominent.The artificial abortion rate of unmarried people has risen significantly (the abortion rate of married women is gradually declining). In cities and villages, the incidence of pre -marital behavior (even rural youth unmarried is higher than that of urban youth)occur.Among unmarried young people, only 21.8%among those who have sexual actors take contraceptive measures in their first sexual activities; 40%of the young women who have experienced pre -marital sex experience have been pregnant, of which the abortion rate is as high as 90%.Pay attention to reproductive hygiene in pre -marital sex.Pre -marital experience, high incidence, high abortion rate, low contraception, low hygiene protection rate, etc. will lead to fertility difficulties in the future.
Other factors affecting fertility
The impact of society and psychological factors on infertility has recently valued the attention of people.The acceleration of the rhythm of social life, the various pressures and emotions that have been affected directly affecting the dysfunction of endocrine systems caused by human biological clocks.Lifetime, diet habits, public health resources and conditions, etc., also directly or indirectly affect people, which affects the metabolism of the endocrine system and the body.Experiments show that the fertility power under high nutrition and nutrients is significantly lower than the fertility ability in basic nutritional conditions.
The damage to human fertility for daily life and career harm has led to a significant increase in infertility.In the daily clinic, at least 50%of infertility couples can find obvious factor affecting their fertility from the clinical history consultation. In addition to engaging in papermaking, chemicals, certain pharmaceuticals and rays, high temperatures, pesticides and other industries,Some modern emerging occupational practitioners, such as computer operators, drivers, civil servants, civil servants, police, etc., have also become increasingly infertile "high -risk groups."
In short, the rise of infertility is the common result of multiple factors.It should cause people's vigilance.
(Editor in charge: Internship Liu Suling)
