At a certain age, when the fertility is on the agenda, women will be afraid of the "physiological clock" and rush to produce a child as soon as possible.However, men were rarely reminded, and they were not worried about postponing the fertility problem of post -marriage and childbirth.
But more and more studies have shown that the age of these future dads will also affect fertility.French researchers collected data from more than 21,000 infertile couples.These data were announced at the 24th European Human Reproductive and Embryo Science Conference held in Barcelona.From it, when the father is over 35 years old, the fetal pregnancy rate is reduced at the same time.
Dr. Stanford Berlock, at the Eylau Center for Assisted Reproduction, said that his father's influence in reproductive was the first time.The researchers concluded that by separating male and female factors related to each pregnancy situation, thereby reaching conclusions that among the most studied objects, they are artificially fertilized because of the man's infertility.The sperm of each research object has been tested, including sperm, sperm activity and sperm form.Clinical conception rate, abortion rate and childbirth rate are also recorded.
As expected, the age of the mother is an important factor in success.Inferential fertilization, or artificial insemination (IUI) can conceive women under 35 years old, only 8.9%among women over 35 years old.The abortion rate is also largely affected by the age of the father.
"This study is of great significance for the husband and wife who are preparing to form a family." Dr. Berlock said, "Our research first confirms the influence of strong parent factors in the results of artificial insemination, and this information will be assisted by the auxiliary reproductive reproductiveThe doctors and patients of the project are considered. "
Because this data is based on men with known fertility problems, it is not clear whether it is suitable for all men of the same age.Previous studies have shown that men also have a physiological clock.
So, what are the factors that cause male infertility?
1. Environmental factors such as haze
Recently, the "Green Paper of Climate Change: Copling Climate Change Report (2013)" jointly released by the Chinese Academy of Social Sciences and the China Meteorological Administration pointed out that the haze weather phenomenon will have a significant negative impact on the climate, environment, health, and economy aspects.For example, changing lung function and structure, affecting reproductive ability, and changing human immune structures.
Haze can affect reproductive ability. Really? Experts believe that there is no doubt that the haze is of course a factor that affects fertility and may have an impact on the reproductive system of men and women.
"Haze is one of the reasons for the rapid increase in infertility couples." Experts analyzed that on the one hand, haze contain heavy metals such as lead and manganese, which will affect the quality of male sperm; on the other handThe respiratory system and the function of the organs directly affect the secretion of male testosterone hormones, which will affect fertility.
2. Congenital genital malformations
Ill tests are the most common congenital organ abnormalities, that is, there is no testicles in congenital scrotum. It includes incomplete testicular decreased and testicular ectopic.The testicles stay in the abdominal cavity, under relatively high temperature, the testicular growth is blocked, gradually shrinking, not sperm, lack of fertility.It should be noted that the testicles stay in the abdominal cavity, and the chance of malignant tumors will increase significantly.Therefore, it should be highly valued and corrected early.Generally speaking, you should go to the hospital for surgery after 1 year old.
3. Washing sauna
Sauna baths can eliminate fatigue and have the effects of getting rid of disease and fitness. Many people are happy about this.However, experts remind: It is precisely the culprit of a sauna.The reason is very simple. Sperm is born in the testicles and has stricter temperature requirements. It must be developed normally at the constant temperature conditions of 34 ° C-35 ° C.Or cause sperm death.
Therefore, the young man who has not been born should only do it occasionally in the sauna bath, and it may be caused by a small loss.
4. I often wear tight pants
Many young men chase the fashion of tight pants, and all year round jeans are not left.As everyone knows, jeans tightly restraint the scrotum and testicles, reduce local heat dissipation, cause the testicular temperature to increase, and hinder the production of sperm.At the same time, tight pants limited the blood circulation of the scrotum area, especially the reflux of the blood vein blood, causing testicular congestion, and brought resistance to sperm production.
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(Editor in charge: Zheng Guisheng)
