Reasons for low sperm survival rate

There are many factors that lead to male infertility, but to sum up, there is a problem with the male's sperm, such as dead sperm, few sperm, etc., which can lead to male infertility. However, there is another situation that is more common, that is, the low sperm survival rate, which is also one of the more common causes of male infertility in clinical practice. So, what is the cause of low sperm survival rate?

If male friends want to solve the infertility caused by low sperm survival rate, they must first know why they have low sperm survival rate. Only by knowing the reason can they solve it fundamentally and cure their infertility.

1. Infection

Acute and chronic inflammation of the reproductive tract or reproductive glands such as the epididymis, vas deferens, seminal vesicles and prostate can reduce sperm motility. The effects of infection on sperm motility can be multifaceted. Infection can also cause a decrease in sperm motility by changing the pH value of seminal plasma. When the pH value is lower than 7 or higher than 9, sperm motility decreases significantly. Patients with acute accessory gland inflammation or epididymal inflammation tend to have an alkaline pH, while chronic accessory gland inflammation may cause the pH to fall below 7. In addition, inflammation-induced leukocytosis in semen can lead to a decrease in sperm motility through direct and indirect causes. The lack of sperm motility caused by prostatitis may be the result of a combination of factors. In addition to factors such as microorganisms, white blood cells, and pH values, it may also be related to zinc disorders.

2. Abnormal semen liquefaction

Semen failure to liquefy or high viscosity is one of the causes of male infertility, and an important factor may be causing infertility by affecting sperm motility. In the seminal plasma of non-liquefied semen, long and thin fibrins can be seen, which are entangled with each other, reducing the space for sperm movement and restraining the sperm. At the same time, coarse fibers are connected into a network by many fine fibers. These may be the reasons for the mechanical restriction of the forward movement of sperm.

3. Immune factors

Antisperm antibodies (AsAb) can affect the fertilizing function of sperm in several different ways. The effect on sperm motility may be that AsAb binds to the sperm tail, which hinders sperm motility, reduces motility, and poores penetration. This has been confirmed by the fact that when anti-sperm antibodies are present on the sperm tail, the ability to penetrate cervical mucus is significantly reduced.

4. Endocrine factors

In addition to affecting the occurrence and maturation of sperm, endocrine hormones also affect the motility of sperm.

The above are all the reasons that lead to low sperm survival rate. However, many male friends still have low sperm survival rate even without the above factors. This may be related to the usual diet of male friends, especially for men who drink frequently, low sperm survival rate is more common.