1. Excessive semen amount
Under normal circumstances, the amount of ejaculation of normal men is about 2 ~ 6ml each time, and the amount of ejaculation has a certain relationship with the ejaculation frequency.Each semen amount is less than 1ml of semen.
Causes: Reasons for reduced semen: ① Lack of ejaculation tube obstruction or the lack of congenital seminal sacs;It can cause damage to the attachment gonad, and the production of semen is reduced.
Second, the liquefaction time of semen is prolonged
Normal semen is liquefied when it is ejected. In the future, jelly -like or condensate is formed. After 5 ~ 20min in a 37 -degree water bath, the semen is transformed into a liquefied state by solidifying the state. This phenomenon is called semen liquefaction.If this process is greater than 1h, it is called the liquefaction time of semen.
Causes: The coagulation of semen is caused by a seminal sac that produces coagulation protein.The liquefaction is the result of a series of protein hydrolytic enzymes secreted by the prostate, which is the effect of liquefaction factors. Therefore, inflammation of the prostate and seminal vesicles causes disorders of secretion function, increased semen solidification factors or reduced liquefied factors, and cause semen to not liquefy.The semen does not liquefy the sperm by the mucus network, which hinders its ability to exercise in women's reproductive tract, so it causes male infertility.
Third, young sperm disease
It is generally believed that the number of sperm tests of multiple formal semen is less than 20 million/ml called young sperm disease.A significant reduction in the surrogacy rate is a common cause of male infertility.
Causes: The causes of young sperm disease include the following 7 aspects.
1. When the varicocele of the sperm vein is iconic, the local temperature of the testicles is increased, and the vascular activity material increases, which will affect the testicular sperm function.However, the degree of veins of sperm veins is not proportional to sperm quality.
2. Cisenital testing and ucchievable tests are one of the most important reasons for the quality of semen.About 60%of patients with unilateral cryptor tests are infertile, so if the sperm density is low and there is a cryptorchidal, it must be treated early.
3. Chronic infection of the genitals in infection of reproductive tract can affect various laboratory indicators in semen.
4. Research on autoimmune reproductive immunology found that men's autoimmune can affect fertility, and anti -sperm antibodies can affect the generation and transportation of sperm.
5. Men's normal sperm function depends on the normal function of the hypothalamic brain-pituitary-gland axis function. Obstacles of any link will affect the spermatogenic function. Others such as thyroid and adrenal diseases will also affect reproductive gland function and cause less sperm disease.Essence
6, chromosomal abnormal chromosomes have a serious impact on sperm density, activity rate and morphology.
7. Other scrotum temperatures are too high, radiation damage, chemical drugs and drug effects can cause liberal sperm disease.
Fourth, no sperm disease
Spermlessness refers to the sperm -free after the sperm -centrifugal semen is centrifuged.
Causes: Sperm -free can be divided into two categories: the first category is testicular sperm functional disorders, sperm cannot produce, also known as authentic sperm -free.The second category is that testicular sperm function is normal.
5. High deformity sperm sperm
There are also abnormal sperm (Table 25-1) in normal semen, which generally accounts for less than 30%. If the percentage of deformities sperm is higher than 50%, it is called a high deformity sperm, which can cause infertility.
Causes: A large number of malformation sperm appears in the semen reflects the abnormal testicles; some drugs such as amulets can increase the sperm deformity rate; the sperm varicocele can lead to increased deformity sperm, typically double -head sperm; in addition, some acute diseases and physical physicsPsychological factors have a pathogenic effect.
Six, hemospermia
Blood in semen is hemospermia.Generally, pink, red, brown -red or bloodshot.Depending on the nature of the lesions and the amount of blood content, it can be manifested as the naked eye blood essence, which contains blood clots and mirror blood essence.
Causes: inflammation of seminal vesicles and prostate, tuberculosis, bloodworms, stones, damage, etc. can cause blood essence, among which seminal vesiculitis is the most common; some tumors such as seminal vesicles, prostate cancer, sperm -papilloma, and benign prostatic hypertrophy can cause bloodExtract, exquisite varicose veins, and some blood system diseases may also cause blood essence.
7. Low sperm activity and dead sperm symptoms
Within 1h after excretion, the vitality sperm should be more than 70%. If the vitality sperm is less than 50%, it is abnormal, which is called low sperm activity.If the sperm is completely mobilized, it is dead sperm.Low sperm activity and dead sperm disease are one of the important reasons for male infertility.
The movement of sperm directly reflects the quality of the sperm.-The activity, there is medium-sized movement; level 3-good activity, active forward movement.
Cause:
1. Long -term abstinence, long -term non -ejaculation often has high sperm density, many dead sperm, and poor sperm activity. This situation is normal. Therefore, it is advisable to use abstinence 5 ~ 7D before checking semen.
2. Reproductive infection. Reproductive infections change the ingredients of sperm, magnesium, citric acid, decreased fruit sugar, and increased pH, which will affect sperm vitality.
(Editor in charge: Internship Liu Suling)
