Post Date April, 15 2023
"The number of sperm in men is decreasing, and the number of infertility cases is increasing. So who murdered the sperm of men?"? In 1929, the median value of sperm was 90 million/ml, while in 1979, the median value was 60 million/ml. This means that half of the men's sperm was above this number and half of the men were below this number. Recently, Professor Doherty surveyed 132 male college students and found that 23% of them had sperm counts of less than 20 million/ml.
1、 Disordered and unclean sexual life. Disordered and unclean sexual life can easily cause male reproductive tract infections. Pathogens that cause genital tract infections include gonococci, tuberculosis bacilli, viruses, mycoplasma, chlamydia, and trichomonas, among which mycoplasma and chlamydia infections are the most common. Genital tract infections first affect sperm production and transportation, leading to oligospermia and a decline in reproductive capacity. Genital tract infection can also cause changes in sperm motility. Genital tract infection can inhibit the secretion of accessory gonads, resulting in insufficient secretion of semen, nutrient deficiency of semen, changes in pH, and changes in semen composition, which can affect the growth environment of sperm, causing a serious decline in sperm motility and quantity, leading to infertility.
2、 Smoking and alcohol abuse. Men are quite sensitive to toxins in tobacco and alcohol, especially reproductive cells. According to research, nicotine in tobacco leaves has the effect of reducing sexual hormone secretion and killing sperm. "For those who smoke 30 cigarettes a day, the sperm survival rate is only 49%, and the secretion of male hormones in smokers is 16% to 47% lower than that in non smokers, resulting in a corresponding reduction in the ability to produce sperm.". Prolonged alcohol abuse can damage spermatogenic cells in the testis and affect sperm production.
3、 Damage to the testis in a warm environment. For example, long-term high-temperature operations, hot water baths, and long-term wearing of tight pants can cause obstacles to the function of the scrotum to regulate temperature. Many men wear tight pants for a long time in order to show a strong and beautiful figure. However, tight pants can firmly attach the scrotum and testicles, preventing the heat dissipation function of the scrotal skin from being fully exerted, thereby increasing the local temperature of the testicles and hindering sperm production. In addition, wearing tight pants can also limit and hinder blood circulation in the scrotum, forming testicular blood stasis, leading to infertility. The testicle is an organ that produces sperm. During spermatogenesis, the temperature of the testicle must be between 35.5 ℃ and 36.5 ℃, which is 1 to 1.5 ℃ lower than the normal temperature. Frequent bathing with very hot water, especially in a tub or sauna, can affect the spermatogenic function of the testicles by keeping the scrotum in a high temperature state.
4、 Eating improperly. Nutritional deficiencies, such as vitamin A deficiency, can lead to a lack of spermatogenic epithelium; Vitamin B deficiency can affect pituitary function and reduce fertility; Vitamin C plays an important role in preventing semen coagulation and maintaining sperm vitality; Vitamin E deficiency can cause testicular damage; Lack of calcium and phosphorus can reduce fertility; The deficiency of trace elements zinc and magnesium can also have a significant impact on sperm production and vitality. In addition, the gossypol in edible crude cottonseed oil can destroy spermatogenic cells and cause infertility; Eating too much celery can also cause infertility. After 10 years of research, a Thai doctor has proven that celery has a contraceptive effect. After men in the trial eat 75 grams of cooked celery every day for 1 to 2 weeks, their sperm count will significantly decrease, from the normal sperm count of tens of millions to 100 million per milliliter to only 3000 per milliliter. Such a small sperm count is difficult for women to conceive.
(Intern Editor: Chen Hao)
