What are the reasons for low sperm survival rate?

Sperm motility is one of the important factors that affect the success of pregnancy preparation. Low sperm motility can lead to male infertility. So what are the reasons for low sperm survival rate?

Reproductive system infection

Inflammation: Reproductive system infection can lead to inflammation of the reproductive system, such as prostatitis, seminal vesiculitis, epididymitis, and urethritis. These inflammations can cause semen mutations, making the pH, oxygen supply, nutrition, and metabolism of semen unfavorable for sperm activity and survival.

Mycoplasma infection

Mycoplasma infects sperm and often attaches to the head and tail of the sperm, making the entire sperm covered with attachments of varying sizes, making the sperm lack vitality and power, reducing sperm quality and quantity, and low survival rate.

Varicose vein

Varicose veins cause local testicular hypoxia due to venous blood flow obstruction. In addition, the increase in prostaglandins and 5-hydroxytryptamine levels in the venous blood can also cause a decrease in sperm survival rate. Varicose veins cause the scrotal temperature to rise, which can also reduce sperm survival rate.

Produce sperm antibodies

Some men have sperm antibodies, which refer to the "self-defense" produced by men themselves, causing the immune system to produce antibodies, causing sperm to agglutinate or brake, reducing the quality and quantity of sperm and reducing survival.

Testicular development is blocked

Before puberty, the pituitary gland secretes insufficient gonadotropin. Testicular biopsy shows that the seminiferous tubules are composed of undifferentiated primitive supporting cells and primitive spermatogenic cells, lacking interstitial cells. The manifestations are incomplete maturity or damage and thinning of the testicular seminiferous epithelium, poor sperm quality, and reduced vitality. For those who have testicular atrophy due to pituitary lesions after puberty or excessive androgen or estrogen treatment, the early changes in testicular biopsy are thickening of the lamina propria and degeneration of spermatogenesis, and late changes are hardening of the seminiferous tubules and atrophy of interstitial cells. The manifestations are small and soft testicles, small amount of semen and no sperm. All of these lead to low sperm survival rate.

Lack of trace elements

Zinc is an essential trace element for the human body, especially in testicular development, sperm formation, and maintaining sperm motility. Selenium plays an important role in the human enzyme system and immune system. It is an important component of glutathione peroxidase in seminal plasma (this enzyme can prevent the formation of lipid peroxidation in sperm membrane, so that sperm has good morphology and function), and can neutralize the toxicity of cadmium and mercury to reproductive organs. The deficiency of these two trace elements will lead to low sperm survival rate.