What Is Asthenozoospermia?

Date:2016-12-30 click:

According to statistics given by WHO, about 15% of couples of childbearing age in the world suffer from infertility, and about 50% of the cases are caused by male diseases. At present, about 40% - 75% of male infertility can not find the cause, which is called idiopathic male infertility, often manifested as oligospermia, asthenospermia, and other semen problems.
 
According to sperm motility, semen routine analysis can be divided into four levels: a, b, c and d. a refers to the sperm which swims fast forward, b refers to the sperm which swims slowly forward, c refers to the sperm that does not swim forward, and d refers to the sperm that moves very slow or even are immobile.
 
Asthenospermia means that after 3-7 days without sexual life, more than three consecutive semen routine examinations indicate that the rate of sperm moves forward(a + b) is less than 50%, or the rate of sperm that moves fast forward is less than 25% or the rate of sperm motility (the rate of alive sperm) after ejaculation is less than 50%.
 
Under normal circumstances, sperm need to rely on the action of various active substances secreted by the accessory gonad to further obtain energy to maintain its ability to move forward. If there are infectious diseases, immune diseases, functional diseases, and developmental diseases in organs such as epididymis and accessory gonads, it is enough to lead to the weakening of sperm'ssperm's ability to move forward or loss, and this condition can be called asthenospermia.
 
Common causes of asthenozoospermia
 
1. Bacterial infections
 
It'sIt's usually caused by frequent masturbation. The causative bacteria enter the urethral meatus and then spread to the reproductive system, such as epididymis, seminal vesicle, and prostate. The infections of these organs will cause variation in seminal plasm; thus, its Ph value, oxygen, nutrition and metabolism will be unsuitable for sperm to move and live.
 
2. Varicocele
 
It'sIt's commonly caused by long-term sitting. Males with this disease will lead to hypoxia of partial testicle, which is the result of venous blood backflow obstacles, and the increase of prostaglandin and 5-hydroxytryptamine in venous blood. Thus, the sperm motility will be reduced.
 
3. Deficiency of microelements
 
Microelements play a very important role in keeping the vitality of sperm, especially zinc. Males with low zinc intake will have the risk of asthenozoospermia. 
 

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