For adult men, if they do not ejaculate for a long time there will be sperm loss. In fact, the main thing is to complete the sperm metabolism, because a long time without ejaculation, sperm detention in the body will also occur natural aging and decline, so a long time without ejaculation will affect the sperm survival rate. But a long time without ejaculation not only affects the sperm survival rate, for the whole sperm state has an effect. First of all, it will be manifested as an increase in semen volume, because the secretion of the accessory sex glands is the main component of semen, which will be accumulated to a certain extent after a long period of not ejaculating. Sperm concentration will be affected, that is, the number of sperm per unit volume will rise, which can be simply understood as more sperm. However, most of the increased sperm are of lower quality, with an overall downward trend in motility and a tendency towards weak sperm. At the same time sperm morphology will also change, will show more deformed sperm. So by not ejaculating for a long period of time, the quality of sperm will decline. The idea of hoping to hold it for a while and then have quality sex and quality births is not realistic. To ensure the birth of a healthy baby, you should have regular ejaculation and regular sex.