Post Date December, 03 2023
Dead sperm syndrome refers to multiple semen tests that show no abnormal sperm morphology and normal sperm density, but the vast majority of sperm are dead and are an important factor in male infertility. The clinical manifestations of azoospermia are quite inconsistent, and some patients have no clinical symptoms; Some patients may have a history of chronic prostatitis, orchitis, seminal vesiculitis, etc; Some patients may have premature ejaculation or low libido due to ejaculation.
The examination methods for azoospermia include the following
1、 Medical history and physical examination: relevant factors can be obtained, such as reproductive system infection, alcoholism, hot work, etc. Generally without specific signs, it occurs in patients with inflammatory lesions such as prostatitis, seminal vesiculitis, and orchitis.
2、 Semen examination: The result of semen examination is the basis for the diagnosis of azoospermia. Generally, 2 semen samples are collected after 2-3 days of abstinence. The amount of semen also has important significance (normal: 1. 5mL). In clinical examinations, the main reason for low semen volume is incomplete semen collection. Therefore, it is a routine requirement to collect 2 specimens.
3、 Endocrine examination: For patients with azoospermia, serum FSH and T examination should be performed first. If both values are normal, no further endocrine examination is required. If the value of T is lower than normal, LH and prolactin tests should be performed. At present, some scholars believe that inhibin B is produced by testicular sertoli cells and can directly reflect the spermatogenic function of the testes compared to FSH. Therefore, inhibin B should also be a routine examination for male infertility patients.
(Intern Editor: Xie Yunsheng)
