Although fertility is the problem of two people, but once infertility is the first thought is that the woman has a problem, one of the reasons that make the man is very good, I have no problem. In fact, male sexual function and reproductive function are two completely different concepts, which are two separate and completely different mechanisms. For example, many men who have given birth also suffer from sexual dysfunction. On the contrary, many patients with azoospermia have a strong libido, normal erection, and normal ejaculation during sexual intercourse, but there are no sperms in the semen. Some men usually do not pay attention to their own maintenance, resulting in a variety of physical problems are exposed when they want to have children after marriage, it will affect their reproductive function. Here is what behavior and diseases will affect the male fertility function. First, personal behavior 1, smoking and drinking The longer you smoke and the more you smoke, the lower the sperm count may be, the higher the deformity rate, and at the same time, the sperm’s vitality is also significantly reduced. This is because the chromium contained in tobacco has a strong killing ability for sperm, while nicotine and polycyclic aromatic hydrocarbons will cause sperm morphology changes. Alcohol also has a direct killing effect on sperm. If alcohol is dropped on the semen, the sperm will die immediately. As a result, men who drink heavily have a higher rate of abnormal sperm and dead sperm. For the sake of your family and your own health, it’s best to start by quitting smoking and drinking less. 2, improper diet Eating too much spicy food easily lead to men’s genitourinary organs congestion, so the amount of semen will be reduced, the quality will change. Eat something picky, food lack of sperm in the generation process of the two elements necessary zinc and selenium. Without dirt and nutrients, sperm cannot be generated and mature. Nutrition advocates a balanced diet, which means not picking and choosing foods. In these foods contain vitamin C and so on, which can improve the quality and quantity of sperm. 3, environmental factors Physical factors such as vibration, radiation, heat; chemical factors such as aluminum, trace elements, pesticides, organic solvents; mycoplasma, chlamydia, bacteria, viruses, etc. on the male reproductive system can produce reproductive toxicity. To be on the safe side, it is better to minimize exposure. When men do not use cell phones, it is best to keep them away from the “sensitive” parts of the body. 4, drug reasons, the main tumor treatment drugs, antihypertensive drugs, hormone drugs, sedatives, narcotics (marijuana, heroin and other drugs). Disease factors 1, congenital hypoplasia of reproductive organs, such as hidden penis, small penis, hypospadias, congenital epididymal vas deferens and other diseases. 2, hereditary diseases, chromosomal defects and other diseases. 2, hereditary diseases chromosomal karyotype abnormalities, Y chromosome micro-deletion leading to spermatogenic dysfunction. Such as hermaphroditic malformations, poor or abnormal genital development can lead to male infertility. Gender dysphoria, poor reproductive organs or abnormalities can lead to male infertility. 3, endocrine diseases: (1) testicular endocrine abnormalities, mainly: primary testicular hypoplasia, such as Klinefelter’s syndrome, leading to testicular dysplasia, spermatogenesis failure; secondary hypogonadism, such as Kallmann’s syndrome, and a variety of pituitary hypoplasia, which can lead to hypogonadism, thereby causing the disease. (2) Pituitary disorders: Pituitary disorders can lead to testicular hypoplasia and spermatogenic failure. (2) Pituitary diseases: hyperpituitary function; hypopituitary function: such as pituitary tumors, inflammation, surgery, etc. leading to hypopituitary function, spermatogenesis is blocked or stopped. (3) Thyroid disease: hypothyroidism can lead to a decrease in testosterone synthesis, inhibition of sperm production, and sexual dysfunction. Hyperthyroidism is often accompanied by breast development, resulting in decreased libido, which can seriously lead to ED. (4) Adrenal disease, diabetes, etc. can lead to hypogonadism and low fertility. (1) Testicular abnormality: Testicular abnormality can be divided into three cases: cryptorchidism, which can not only lead to infertility, but also induce malignant changes; in the fetal period because of unfavorable environmental damage to the embryonic primordium; early testicular injury, which can be caused by birth injuries in the process of delivery. (2) Acquired testicular injury: such as hernia repair, testicular fixation surgery, syringomyelia surgery, etc. caused damage to the testicular blood vessels, hindering the blood supply and causing testicular atrophy. (3) Syringomyelia: Syringomyelia compresses the blood circulation to the testicles, thus causing testicular infection or atrophy. The incidence of this disease is 16%-19% after puberty. (4) Varicocele: Varicocele destroys the spermatogenic function of the testes due to elevated local temperature, accumulation of toxic substances, and affected blood supply to the testes, resulting in atrophy of the testes, decreased spermatogenic function, and decreased sperm quality. 5.Infection of reproductive organs Specific infections (common: mycoplasma, chlamydia, gonococcus) and non-specific infections (orchitis, epididymitis, seminal vesiculitis, etc.) in the reproductive system can directly damage the testes, affecting spermatogenesis, spermatogenesis, spermatogenesis and spermatogenesis, inhibiting the secretion of accessory sex glands and affecting spermatozoa quality, which in turn affects the reproductive function. 6. Sexual dysfunction Erectile dysfunction and ejaculatory dysfunction cause infertility due to the inability to ejaculate semen into the female body. Various factors affecting male fertility, sexual function is only one of the reasons, in short, there is always a reason for infertility, timely medical treatment to find the cause of infertility, in order to complete the fertility wish.