Sperm survival rate

Male fertility is related to many factors, the most important of which is sperm. Sperm is the seed of fertility. Good fertility is related to the quality and number of sperm. Some people's sperm survival rate is very low, less than 60%. Needless to say, this will have a great impact on fertility, reduce the probability of conception, and in severe cases lead to infertility.

Low sperm survival rate is now a very common phenomenon. People with such conditions should not be anxious, but seek treatment in time to find out the cause of the low sperm survival rate and see if it is caused by some problems in their own body or by the living environment.

Disease factors of low sperm survival rate

(1) Sexual intercourse:

Sexual intercourse can reflexively cause the contraction of the vagina and uterus, accelerating the movement of sperm. Sex medicine research has confirmed that the vagina contracts rhythmically during female orgasm, and the uterus is also in a contracted state. Animal experiments have shown that repeated mating stimulation can greatly accelerate the movement of sperm and increase fertilization rates.

(2) Estrogen:

Estrogen can enhance the contraction of the fallopian tube. In the preovulation and ovulation period, when estrogen is dominant, the secretion of the fallopian tube increases, and the fallopian tube moves from the proximal end to the distal end in segments, pushing the sperm and fallopian tube fluid step by step from the uterus to the ovary. Sex hormones can also affect the movement of sperm by affecting the properties of the cervix and fluid.

(3) Prostaglandins:

There are many kinds of prostaglandins in semen and the female reproductive tract, which have a contraction effect on the non-pregnant uterus and fallopian tubes. In addition, estrogen can enhance this effect. The sensitivity of the uterus to prostaglandins is higher in the middle of the menstrual cycle.

(4) Cervical mucus:

Cervical mucus serves as a sperm storage area, protecting sperm from the adverse vaginal environment, providing energy for sperm, and may be involved in sperm capacitation.

(5) Impact on spermatogenesis:

The reason why men have sperm is controlled by a certain sperm production system. If any part of the male sperm production system is abnormal, it will cause male sperm production dysfunction, resulting in a low sperm survival rate.

(6) Others:

During sexual intercourse, semen is ejaculated around the cervix and the posterior fornix of the vagina. The movement and speed of sperm in the fallopian tube are controlled by several mechanisms: the direction of peristalsis of the fallopian tube muscle layer; the contraction of the fallopian tube mucosa and the mesosalpinx; the direction of fluid flow due to the activity of the cilia; and the opening and closing of the inner part of the fallopian tube. Since the contraction of the fallopian tube can temporarily change the shape of the fallopian tube cavity, the fluid and suspended sperm can move from one cavity to another, and gradually move to the umbrella end of the fallopian tube.

Lifestyle factors

1. Car exhaust and noise

With the development of modernization, the impact of urban noise on health has become more prominent. Noise can cause endocrine disorders in the human body, leading to abnormalities in semen and sperm. Long-term noise pollution can cause male infertility; for women, it can cause miscarriage and fetal malformation. Automobile exhaust contains a large amount of harmful substances, such as sulfur dioxide and carbon dioxide. Long-term exposure to these substances will affect the reproductive health of the human body. The most serious thing is that dioxins in automobile exhaust are extremely strong environmental endocrine disruptors, which can change the morphology of male testicles, reduce the number of sperm, and reduce spermatogenesis.

2. Tobacco and alcohol

Smoking has always been a major enemy that affects physical health, and its impact on semen is equally obvious. Nicotine and polycyclic aromatic hydrocarbon compounds produced in tobacco can cause testicular atrophy and changes in sperm morphology. Compared with non-smokers, smokers have significantly lower major indicators of semen quality and higher sperm deformity rates. The number of white blood cells in semen increases. Alcohol has a direct impact on the human liver and male testicles. Studies have found that patients with chronic alcoholism will experience testicular atrophy, leading to decreased semen quality. Therefore, men must avoid frequent excessive drinking.

Sperm survival rate has a great impact on us, especially for some couples who love children but have been unable to conceive. After examination, it is found that there is a problem with the male's sperm, which has a great impact on the relationship of the couple. Male friends will also feel very hit. In order to have a baby earlier, they must actively cooperate with the treatment.