Over the past half a century, the quality of human sperm has declined, and it may cause unpredictable dangers to human survival.The deterioration of environmental conditions is likely to play an important role in the decline of sperm quality.Over the past half a century, sperm concentration and sperm count have been declining for a long time. At the same time, the incidence of abnormal testicles has increased significantly.Both trends make people worry about future men's fertility.
Men's fertility is related to sperm count to a certain extent, and the clinical significance of sperm counting decline may be reflected in the comprehensive decline of men's fertility.The average sperm density of human male semen has dropped from 1.13 billion/ml in 1940 to 66 million/ml in 1990, and the average semen volume of each ejaculation has dropped from 3.4 ml to 2.75 ml.Several factors that cause these changes are related to the environment.
In the past 20 years, there are factors that cause the quality of the entire male semen, which is probably the consequences of increased pollution, radiation, and population heavy pressure.If this can be confirmed, for the preservation of human races, mandatory and strict measures may be adopted to reduce the disastrous pollution, radiation and other toxic factors that may damage sperm production.Therefore, we should emphasize the importance of the importance and adjustment of human development, maturity and fertility age, and aging (women's menopause, menopausal, men's menopause).
Diseases, malnutrition, socio -economic conditions, long -term chronic tension, emotional depression, smoking, alcoholism, drug addiction and vocational toxic substances such as heavy metals, pesticides, anesthesia, cell growth and reproduction inhibitors, anti -metabolic drugs and radiation, etc.A large number of all kinds of environmental factors will have a negative impact on various reproductive health parameters.These factors also affect adolescence, menopause, premature ovarian function, etc.
(Editor in charge: Internship Liu Suqiong)
