What is the function of testicular ultrasound?

Through the examination of testicular ultrasound, we can observe the gross pathological changes of testis and the changes of sperm survival rate. Because the testis is the place where sperm is produced, in order to prevent radiation, CT examination is generally not needed after testicular injury, mainly through B-ultrasound examination. Here are some testicular diseases, which are important factors affecting sperm survival rate. 1. FSH and LH secreted by pituitary gland with abnormal endocrine are the initiators and maintainers of testicular sperm production. When FSH or LH is too low, the spermatogenic function of testis will be low. 2. Genital tract inflammation such as epididymis, vas deferens, seminal vesicle and prostate will affect the motility of sexual sperm and the function of testicular sexual sperm. This includes the direct damage to sperm and testis by microorganisms that cause infection, the change of PH value of seminal plasma during infection, and the release of a large number of white blood cells (WBC) and inflammatory mediators during inflammation, which will reduce the vitality of sperm and inhibit the spermatogenic function of testis. 3. Immune factors Anti-sperm antibodies will attach to the tail of sperm, leading to the decline of sperm vitality or viability. 4. Varicocele and varicocele will lead to excessive local temperature, microcirculation disturbance, nutrition reduction, reduced oxygen partial pressure and insufficient nutrition supply, which will all affect the vitality (rate) of sperm and the spermatogenic function of testis. 5. Chromosome Abnormality Recent studies have found that the gene fragments that determine sperm production on the Y chromosome are divided into three main fragments: AZFa, AZFb and AZFc. Missing a fragment will cause oligozoospermia and asthenospermia.