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Egg, the sperm quantity, quality, activity play an important role, in which the quality of sperm is particularly important. The man’s physical, reproductive health and functional status and certain environmental factors, affect the quality and quantity of sperm. Each row of the man’s sperm less than 1.5 ml, less than 20 million sperm count, sperm abnormality rate of more than
20 mortality rate over 50 of sperm, sperm motility less than 60 within half an hour is not semen liquefaction, etc. can cause infertility. Beijing Shi Changchun Tianlun director of infertility experts said, is often encountered in clinical patients with a number of infertility, the woman after treatment, the problem has been basically solved, it is still difficult to become
Pregnant, the result is often a problem with the man’s semen. Some in vivo and in vitro factors that can cause defects in sperm production, so the man risk of infertility, or cause defects in offspring. Clinically, at least 85 of male infertility are sperm defects itself, its main reasons: (1), congenital factors, such as developmental disorders or testicular maturation

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