Healthy adult males contain 0.6 ~/kloc-0.50 billion sperm per milliliter of semen, and the motility rate is more than 85%, while the abnormal sperm is less than 20%. When the number of sperm is too small or the activity rate is low or the abnormal sperm is too high, the male reproductive function will decline, and even the eggs cannot be fertilized, resulting in infertility.
Smoking will reduce the number and motility of sperm, and the incidence of sperm abnormalities will increase. Nicotine inhaled by smokers acts on the seminiferous epithelium of seminiferous tubules that produce sperm, which reduces its spermatogenic function, thus reducing the quantity and quality of sperm produced.
Australian clinicians found that the average number of sperm per milliliter of semen of smokers was 27 million, and the activity rate was 49.27%. For those who smoke more than 20 cigarettes a day, 6% of people have only 0.0/kloc-0.0/billion sperm per milliliter of semen, which is obviously lower than the basic number needed for fertilization, so they are infertile. In addition, the incidence of varicocele in smokers is 10 times higher than that in non-smokers, which is also one of the reasons for sperm reduction, activity reduction and infertility.
The fatal harm of smoking to men is to make men impotent. Studies have confirmed that long-term smokers will cause small blood vessel embolism at the end of human body, including poor blood supply to penis and impotence.
Impotence prevents couples from having a normal sexual life, which not only leads to infertility, but also affects feelings, family life and family harmony. 1986, Pretoria University investigated 1 16 impotence patients and found 108 as a smoker. Another survey found that smokers are twice as likely to suffer from impotence as non-smokers, but some impotence patients can heal themselves after quitting smoking.
So men must smoke less, of course, it is best not to smoke.