Counting men sterile 7 reasons

<p> The causes of male infertility caused by the following points: </ p> <p> </ p> <center> </ center> <p> ● Sexual dysfunction include impotence, premature ejaculation ., experimentation, not ejaculate, not. ejaculate in occupies the causes of male infertility 32.4%. </ p> <p> • Semen quality anomalies, including oligozoospermia, azoospermia, dead sperm, weak sperm and sperm and semen volume is too .small and semen not liquefied, etc. </. p> Oligozoospermia accounts for causes of male infertility 15.4%. <p> • Varicocele of male infertility accounts for 12%. </ p> <p> • Immunological factors .: refers to the male serum or semen in a asab, produce their own. antisperm immune response that causes the immune infertility. </ p> <p> ● Reproductive tract infections, congenital anomalies, systemic diseases and unknown causes of infertility. .</ p> Cause male infertility new secrets <p> ● Gene defect according to Finland. scientists pohjanhovi? ya to Dobbs (Howy Jacobs)-led research team found that at least 5% to 10% of male infertility is caused by .genetic defects. </ p> <p> This occurred defect gene called POLG, the gene for hereditary. mitochondrial DNA in multiply plays a decisive role. </ p> The study found that has the POLG genes mutate the male's sperm ., not only exercise capacity is weak, but there are still many shortcomings and deformation, leading couples with infertility. <! - .- AFP Control Code / Caption. left vertical banner --><!-- AFP Control Code End ./ No .--> <p> • A lack of testicular stem cells cited in cells called stem cells, they are experiencing the spermatogenesis and. mature, and generate sperm cells. </ p> New study finds that this process .is called GDNF molecules. <p> GDNF is testes in another type of cell generated, ie testicular cells in a thin tube. </ p> GDNF is a. signal, it prompted the stem cells turn into sperm cells. Use of .genetic engineering by the quality of the low level of mouse GDNF, does not produce any stem cells, therefore, it is impossible to produce sperm. <p> Many male infertility is. caused by the lack of stem cells, so that you can .consider injecting GDNF approach to the treatment of infertile men. </ p> <p align="right"> (Practice editing: Li Jing) </ p>..