Necrospermia refers to the excessive number of dead sperm (>40%) or even all dead sperm in the expelled sperm. It is one of the main causes of male infertility and can directly lead to infertility. 1. The tail of the epididymis and the abdomen of the vas deferens are the places where sperm are stored. The epithelial secretions of the seminal vesicles are rich in fructose, which is an active energy source for ejected sperm, and the prostate fluid is alkaline, which is suitable for the survival and activity of sperm. 2, we need to understand what causes the dead sperm, the main reason is the inflammation of the sex glands and vas deferens. As the infection consumes a lot of essential nutrients or trace elements zinc on which sperm survive, or the pH of semen changes, as well as the emergence of anti-sperm antibodies and other factors that destroy the environment in which sperm live and cause sperm death. 3, is also the most critical is how to treat dead sperm, the key to treating dead sperm is to treat prostatitis, seminal vesiculitis. At the same time, attention should be paid to other causes of dead sperm, and actively give treatment, such as surgery to treat spermatozoa, the use of hormonal drugs to regulate the endocrine function of the body and supplement a variety of nutrients; in addition, it is also necessary to match the drug treatment to promote sperm formation and improve sperm vitality, in order to improve the overall quality of semen and increase the woman’s conception rate.