1. Definition In general, the amount of fluid discharged by a normal healthy man is generally 2-6 ml each time, and less than 1 ml is called hypospermia. Semen is composed of spermatozoa and seminal plasma, and spermatozoa only account for a very small part of semen, about 10%. The decrease in semen is mainly due to the decrease in the seminal plasma component. 2. What factors can cause low semen volume? (1) Decline in the function of the sex glands When the neuroendocrine axis of the male body is disrupted, especially testicular dysfunction, it can cause androgen secretion deficiency, making the sex glands hypoplastic or secondary atrophy and unable to secrete enough semen normally. Secondly, when there is infection or other lesions in the accessory gland, especially the fluid secreted by the seminal vesicle gland and prostate gland can account for 95% of the semen volume, and once serious inflammation occurs, the semen volume will decrease. (2) Atresia or narrowing of the ejaculatory duct Spermatozoa and seminal vesicle secretion must enter the urethra and be discharged, and the subsequent exit is the ejaculatory duct, which means that the abdomen of the vas deferens and the seminal vesicle duct converge to form the ejaculatory duct. The “barrier” in the ejaculatory duct prevents the discharge of vesicular fluid and sperm or reduces the discharge, so that only a small amount of fluid is discharged from the prostatic duct, which opens independently in the urethra, when ejaculation occurs, and the amount of semen is naturally reduced. (3) Diverticulum or urethral stricture in the urethra Diverticulum or urethral stricture in the urethra will cause semen to be partially stored in the diverticulum and not all discharged, or to be blocked in the narrow area and not all discharged. (4) Retrograde ejaculation Retrograde ejaculation refers to the act of ejaculation during sexual intercourse, but the semen is not ejected forward from the urethra, but flows backward into the bladder, resulting in less or no semen entering the woman’s body. (5) Physiological hypospermia is mainly seen in patients who have frequent sexual intercourse. For example, some men. The amount of ejaculate is relatively small each time because they have sex once or several times a day. 3. Why does a low semen volume cause male infertility? Sperm can’t get in: The amount of semen is too small, and after intercourse, it can’t form a sufficient pool of semen in the posterior vaginal vault, making it difficult for sperm to enter the cervical canal, leading to infertility. Sperm motility is too poor: This mainly includes the following two aspects: ① Semen contains nutrients such as fructose, which provides energy for sperm activity. If the amount of semen is too low, then it cannot maintain sufficient nutrients for sperm activity and metabolism, making it impossible for sperm to travel up the vagina, leading to infertility; ② As semen is alkaline, when the amount of semen is too low to fully neutralize the acidic environment in the vagina, then sperm will lose vitality and cannot The sperm will lose vitality and cannot travel up to the fallopian tubes to unite with the egg, resulting in infertility. 4. How to treat? (1) Western medicine: mainly includes hormone therapy, anti-infection, and release of obstruction, etc. (2) Chinese medicine: According to Chinese medicine, low semen volume belongs to the category of deficiency labor, mostly due to congenital endowment deficiency or excessive room labor damage to the kidney essence, or a long illness resulting in deficiency of both qi and blood, lack of kidney essence, and finally to the lack of kidney essence, i.e. kidney deficiency is the root cause of low sperm volume. However, each person has a different constitution and may be clinically mixed with multiple symptoms, so the treatment plan should be individualized, not uniform, with the focus on kidney tonification. 5, how to regulate (1) food therapy: appropriate food eel, squid, scallops, eel, sea cucumber, etc., followed by yam, ginkgo, frozen tofu, tofu skin. Because these foods contain high lysine, which is a necessary component for sperm formation. Secondly, you can increase the intake of foods rich in sex hormones, such as sheep kidney, pig kidney, chicken liver, etc. The ingredients in these foods can promote spermatogenic cell division and maturation, which is beneficial to spermatogenesis. (2) Adjustment of lifestyle: In addition to food therapy, we should also pay attention to maintaining a regular routine in our daily lives, going to bed early and waking up early, quitting bad habits and doing more aerobic exercises.