1, sperm morphology
It looks like a tadpole, with a round and big head, a flat body and a long and curved tail, about 60 microns long;
2. Sperm development process
Male testis produces thousands of sperm, and its seminiferous tubules contain sperm embryos-spermatogonia. With the increase of men's age, embryos become active, gradually divide into sperm cells, and finally become mature sperm after ten weeks of hard work;
3. Sperm excretion
After the mature sperm is produced, it will be transported to the epididymis and ready to be launched. Once the signal of ejaculation is received, these sperm will enter the ampulla through the vas deferens. After further stimulation, they will reach the posterior urethra through the ejaculatory duct, and finally they will be successfully ejected under the contraction of pudendal muscles.
2 How to judge the quality of sperm, high-quality sperm
1, quantity:
The amount of ejaculation per time should be more than 2 ml, preferably not more than 7 ml;
2, color:
The normal color of sperm should be grayish white, but slightly khaki;
3, professional testing:
The white blood cell count, pH value, survival rate, sperm number and motility in semen were investigated comprehensively.
4. Time:
Sperm injected by normal men is jelly-like at first, and will become liquid after half an hour;
5. Viscosity:
Gently stir the semen with a stick. If the length is short and filiform, it is normal.
Symptoms of low sperm motility:
1, decrease of semen volume:
It is also a manifestation of low sperm survival rate. Normal male sperm output is 2~5ml. If it is less than 2ml, it means it is caused by internal factors. At this time, the sperm density increases, and the sperm is concentrated at one point, which leads to the decline of vitality and viability.
2, semen does not liquefy:
Normal semen is a liquid at first, and it will soon become sticky and gelatinous, similar to jelly. It will liquefy back to liquid after 5-30 minutes. If it still doesn't liquefy after half an hour, it means that there are prostatitis and seminal vesiculitis in the body. If it doesn't liquefy, it will affect sperm motility.
3. Abnormal semen color:
It is gray, and the semen will feel more impurities after liquefaction; Although the color of normal semen is grayish white, the color of patients with low sperm motility will be lighter.
4. Abnormal pH value:
Normal is weakly alkaline, and the ph value is 7. 7~8。 5. The acidity or alkalinity of semen may affect the activity and metabolism of sperm, which are the reasons why sperm cannot survive.
3 Lifetime Changes of Male Sperm 14- 19 years old
Sperm gradually matured and began to appear nocturnal emission;
20-29 years old
Sperm develops best, and every "little tadpole" is ready to combine with eggs at any time;
30-39 years old
Sperm quality began to deteriorate and male erectile function began to fail to meet the requirements;
40-49 years old
Sperm activity continues to decline at a faster rate;
50-59 years old
The probability of birth defects in offspring will be greatly improved;
Over 60 years old
The abnormal rate of sperm increased. At this time, the chances of successfully getting a woman pregnant are greatly reduced.
4 What behaviors affect sperm quality? In recent years, the quality of male semen has generally declined worldwide. The reason is that various social and environmental factors are inevitable, and the influence of living habits and details can not be ignored. Excessive long-term hot water bath, hot spring bath, sauna bath, electric blanket and other high-temperature behaviors will destroy the spermatogenic epithelium and lead to the decline of spermatogenic function. So, let's sum up, in order to protect the quality of sperm, what behaviors should we avoid:
1, high temperature
The process of sperm growth needs low temperature, otherwise it will die prematurely. Keep this physiological state, when the temperature is too high, expand the heat dissipation area, and when it is cold, it will wrinkle and reduce the heat dissipation area, thus keeping the scrotum temperature lower than the abdominal cavity temperature. If you have a hobby of taking a hot bath, please try to lower the water temperature, because too high a water temperature will reduce the number of sperm and lead to infertility.
2. Malnutrition
The growth of sperm needs a lot of nutrients. Having habits such as partial eclipse and picky eaters will reduce the zinc content in the body over time. As we all know, the trace element zinc is known as "harmony between husband and wife". A small amount of zinc will reduce the number of sperm and even lead to the loss of fertility.
3. Drug effect
Frequent use of sedatives, antineoplastic drugs and chemical drugs, such as medullin, furan, hormones, etc., will cause growth disorders and sperm chromosome damage and breakage. A large amount of radiation exposure can also cause sperm chromosome aberration. So _ Jun _ reminds that men in reproductive period should try to avoid long-term exposure to such harmful substances and not abuse drugs at will.
4. Excessive sexual life
Everything can be moderate. Too much or too early sexual life is harmful, which will lead to sperm reduction during ejaculation.
5. Fear of negative emotions
If you are depressed and unstable for a long time, it will directly affect the nervous system and endocrine function, and in severe cases, it will cause infertility.
6. Smoking and drinking too much
Smoking and drinking are the enemy of sperm. Some men are very sensitive to the toxins in cigarettes. Nicotine in cigarettes can kill sperm. Once men quit smoking, sexual arousal in the blood will increase. The number of sperm in the semen of smokers is less than that of non-smokers, but the number of abnormal sperm is more. Long-term heavy smoking is one of the important factors leading to infertility. Excessive drinking will not only lead to the decline of gonadal function, but also make the chromosomes in sperm abnormal, which will lead to fetal malformation or dysplasia. So teenagers should form the habit of staying away from alcohol and tobacco. As an adult, even if you don't quit smoking and drinking, you should be careful not to overdo it.
5 How to improve sperm quality 1, high quality protein.
High-quality protein is the main raw material for forming semen. The foods with high content in protein include lean meat, pig spinal cord, dog meat, beef and mutton, chickens and ducks, eggs, fish and shrimp, and bean products.
Step 2 supplement trace elements
Human testis, prostate and semen all contain high concentrations of zinc, and zinc intake is very important. Such as oysters, shrimps, clams, shellfish, animal livers, etc. Magnesium can not only enhance sperm motility, but also help to regulate human heart activity, lower blood pressure and improve male fertility. Such as soybeans, potatoes and so on. ;
Step 3 supplement arginine
Arginine is an essential component for producing sperm, and oligospermia will occur when it is lacking. Foods containing arginine include eel, snakehead, sea cucumber, tendon, bean products, lean meat and so on.
4, sex hormone food
Calcium-containing food: Calcium ions can stimulate sperm maturation. Foods rich in calcium include shrimp skin, salted eggs, egg yolk, dairy products, soybeans, kelp, sesame sauce and so on. Animal viscera: contains more cholesterol, which is an important formula for synthesizing sex hormones. In addition, it also contains adrenaline and sex hormones, which can promote the division and maturation of spermatogonia.
5. Various vitamins
Vitamins can provide raw materials for sperm, promote sperm production, and keep sexual organs inviolable. Among them, vitamin E has the closest relationship with the reproductive system, and has many functions, such as preventing the aging of sexual organs, regenerating the empty vas deferens, and enhancing sperm motility.
6. Good eating habits
Under irregular living habits, the body will unconsciously feel tired, which may affect the quality of sperm. Sperm health is closely related to diet. In order to provide healthy sperm, we must take protein, calcium, zinc, selenium, phosphorus, magnesium, VitA, VitE and other nutrients necessary for sperm production from a rich diet.
Step 7 supplement minerals
Vitamins can provide raw materials for sperm, promote sperm production, and keep sexual organs inviolable. Among them, vitamin E has the closest relationship with the reproductive system, and has many functions, such as preventing the aging of sexual organs, regenerating the empty vas deferens, and enhancing sperm motility.
8. Be more active and less sedentary
Male sperm can develop normally at 35.5 ~ 36.5℃. However, if you keep a posture for a long time, the temperature in the scrotum will increase, which will cause pathological damage to the testis, lead to the decline of sperm production capacity, sperm quantity and vitality, and cause asthenospermia, which is easy to cause infertility.
Among infertile couples, the etiology of male and female is as common, accounting for about 40% each, and about 20% is caused by both husband and wife. The common factor of male infertility is low sperm quality. The combination of high-quality sperm and healthy eggs will inevitably bring healthy babies. This issue of the topic of male sperm health will tell you about this. For more information, please pay attention to the lecture hall of TV network.