Recently, I read a report about a Danish scientist’s study on active and passive smoking and healthy fertility in 3486 men: the conclusion was that the offspring were born with early puberty, reduced average height, reduced levels of sex hormones in the body, smaller testicles, reduced sperm density, etc.; and of course, the offspring’s IQ, the offspring’s rate of congenital malformations, etc.! It’s scary! Originally, we only know that smoking will only infringe on oneself or the surrounding partners, but now we also know that smoking also jeopardizes the offspring. Further review of the literature, a foreign study of 655 cases of smoking and 1131 cases of non-smoking infertile men’s semen found that: 1, smokers of sperm density, total sperm count, the number of motile spermatozoa than non-smokers decreased by 15.3%, 17.5%, 16.6%; 2, smokers of the normal form of spermatozoa proportion decreased, that is, the sperm deformity rate increased; 3, smokers of sperm survival rate The sperm survival rate, semen volume and seminal plasma fructose concentration of smokers also decreased; 4, sperm head of the DNA double helix structure and testicular mesenchymal cells are damaged, and the younger the age, the greater the amount, the longer the positive correlation; 5, testicular mesenchymal cells in the impact of harmful substances in the cigarettes, the level of its ability to synthesize testosterone has also declined, resulting in the dependence on testosterone and the production of mirrors of the process of spermatogenesis irreversibly altered; 6, cigarettes also lead to damage to the arterial endothelial cells, and then the blood in the bloodstream. Damage to the endothelial cells of the arteries, which in turn increases the carbon dioxide content in the blood; blood flow to the penis is reduced; nitric oxide is reduced; penis hypoxia; and finally lead to erectile dysfunction. Other, such as lung cancer and other incidence of increased is already well known, smoking on the reproductive, especially on their own offspring caused by the great adverse effects, know that not many people, our male doctors strongly appeal to everyone for their own health, more for the sake of future generations, as soon as possible to stay away from smoking, smoking has a lot of harm rather than one benefit.