Semen routine is the abbreviation of semen routine examination; It is one of the simple and popular laboratory examination methods in urology, andrology and reproduction. It is also one of the important parameters that gynecology often refers to.
general inspection
1, semen volume: 2 ~ 5ml for normal people at a time.
2. Color and transparency: Under normal circumstances, the semen just injected is milky white or grayish white, and it is translucent milky white after liquefaction. If semen has not been discharged for a long time, it may be light yellow. Bright red or dark red blood semen can be seen in inflammation of reproductive system, tuberculosis and tumor, and yellow purulent semen can be seen in seminal vesiculitis or prostatitis.
3. Viscous liquefaction: Normal fresh semen is a viscous colloid several seconds after discharge, and begins to liquefy under the action of fibrinolytic enzyme in semen 30 minutes later.
If the viscosity decreases like rice soup, it may be that the number of sperm decreases, which is seen in inflammation of reproductive system, and semen does not coagulate due to obstruction or injury of seminal vesicle; If semen does not liquefy after 1 hour, it may be caused by inflammation destroying fibrinolytic enzyme, such as prostatitis. Non-liquefaction of sperm will inhibit sperm motility and affect pregnancy.
4.pH value: pH value. The weak alkalinity of normal semen pH value is 7.2 ~ 8.0, which is beneficial to neutralize acidic vaginal secretions. PH less than 7 or greater than 8 will affect sperm activity and metabolism, which is not conducive to pregnancy.
Extended data:
1, notes
Before examination: Before leaving semen, the patient should stop sexual intercourse for 4-7 days. Testosterone propionate, testosterone phenylacetate and testosterone norpropionate should not be used before examination 1 week.
Examination: It is better to get up in the morning for sperm collection, and wash your hands and genitals, especially the glans penis, with warm water before sperm collection. Ejaculation can be caused by masturbation or electric massage.
Not suitable for the crowd: not suitable.
2. Inspection process
The appearance, quantity, liquefaction degree, sperm survival rate and morphology of semen were detected by instruments.
3. Related diseases
Lannfelt syndrome, oligozoospermia, congenital testicular hypoplasia in children, spontaneous abortion, azoospermia, vas deferens obstruction, syndrome of blood stasis, infertility due to luteal insufficiency, tuberculosis of male reproductive system, congenital testicular hypoplasia, etc.
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