The colliculitis and vesiculitis or the inflammation of the spermaduct may cause the block of ejaculatory ducts , the sperms from testicle could t be ejaculated through the spermaduct , so no sperms is found in semen . this is called non - sperms disease . less or non sperms disease also result in infertility due to the block of ejaculation 精阜炎症输精管或精囊炎症结核，都可导致射精管梗阻，来自睾丸输精管的精子不能顺利射出，精液中查不到精子即无精症，如射精不畅可出现少精症，都会造成不育症。
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