The definition of azoospermia
Azoospermia is the medical condition of a male not having measurable level of sperm in his semen.
The pathology of azoospermia
After the sperms generate from the convoluted tubules of spermary, the sperms are reserved in the spermatophore with the transportation of sperm ducts. The seminal vesicle fluid secreted by the spermatophore contains the nutrients which are necessary for the sperms.
However, bacteria can also sneak into the prostate, spermatophore, sperm ducts, epididymis, and spermary via ejaculatory ducts. Then these bacteria can cause
prostatitis, spermato
cystitis, spermatitis,
epididymitis and etc.
Actually, bacterial reproduction would spend large amounts of nutrients that are critical for the developing of sperms. What`s worse, bacterial reproduction destroys sperms` growing environment and lead to the death of sperm. At the same time, large amounts of acid materials excreted during the process of bacterial reproduction, make the decreasing of PH of male genital tract and acid poisoning of sperms. Moreover, bacterial reproduction would spend much oxygen which is also necessary for the development of sperms.
Azoospermia can be divided into two types: pretesticular azoospermia and posttesticular azoospermia. Pretesticular azoospermia is characterized by inadequate stimulation of otherwise normal testicles and genital tract. In posttesticular azoospermia, sperms are produced but not ejaculated. It is a condition that affects 7-51% of azoospermic men.
Causes of azoospermia
1. Inflammation of generative organs which can make it haematose, dropsical and sludging, in the end the sperms die owing to lack of blood and oxygen.
2. Chronic spermatocystitis causes decreasing of fructose and the sperms dead.
3. Prostatitis, spermatitis and epididymitis would influence the ordinary secretion, especially the chronic prostatitis can decrease the amount of microelement zinc, it would influence the metabolism of sperms
Causes of oligozoospermia
1. Geneogenous and hypogenetic testicle or retained testicle
2. Varicocele or hydrocele testis
3. Inflammation of genital tract
4. Resistance to immunity or endocrine dyscrasia
5. Abnormality of chromosome, especially the sex chromosome
6. Drugs, alcohol, smoking, pesticide, radiation, heavy metal pollution
Weak kidney function, lack of kidney-yang, limpid semen, spiritless sperms, geneogenous defects, acquired excessive loss are all the possible causes of oligozoospermia.
Key words: azoospermia; oligozoospermia; causes of azoospermia; causes of oligozoospermia
