We all know that sperm quality is crucial for male fertility. If one suffers from oligospermia, it can lead to infertility. So what are the reasons for oligospermia? Below is an introduction to the diseases that cause male oligospermia for everyone to understand.
Varicocele
Infertility caused by varicocele accounts for 30-40% of male infertility. The testicular spermatogenesis function is affected due to the increase of testicular temperature and toxin accumulation, which can lead to oligospermia, or even azoospermia in serious cases.
Inflammation of the urinary and reproductive systems
Including orchitis, epididymitis, seminal vesiculitis, prostatitis, urethritis, etc., these patients have the highest proportion in oligospermia. Inflammation of the genitourinary tract can directly affect testicular spermatogenic function, and can also cause the production of anti sperm antibodies in the blood or semen, affecting the acidity and alkalinity of semen. In addition, the direct killing effect of pathogens on sperm can lead to reduced sperm count.
Cryptorchidism
There are research reports that about 30% to 60% of patients with unilateral cryptorchidism are infertile, while 50% to 100% of patients with bilateral cryptorchidism are infertile. In oligospermia, cryptorchidism accounts for about 9%.
Endocrine abnormalities
The normal spermatogenic function of men depends on the normal function of the hypothalamus pituitary gonad axis. Any link obstacle will affect the spermatogenic function. Other diseases such as thyroid and adrenal gland diseases will also affect the gonad function and cause oligospermia.
Excessive scrotal temperature
The seminiferous tubules in the testes, which are specifically used to produce sperm, are very sensitive to temperature changes. The suitable temperature for this area is 2-3 ℃ lower than the human body temperature. Excessive temperature can easily inhibit the survival and maturation of sperm, resulting in a decrease in the number of sperm in the semen or a decrease in motility.