How to distinguish between good and bad men’s semen

　　1. Semen volume:

　　Normal ≥2ml. When it is more than 7ml, it is too much, not only sperm The density is reduced and it is easy to flow out of the vagina, resulting in a reduction in the total number of sperm, which is common in seminal vesiculitis.； Less than 2ml is considered too small a semen volume, but usually less than 1ml is considered too small. At this time, semen and female The contact area of ​​the reproductive tract is small, or the viscosity is not conducive for sperm to enter the woman's cervix, resulting in infertility. It is common in severe paragonadal inflammation, low testosterone levels, ejaculation Tube obstruction, retrograde ejaculation, etc.

　　2. Color:

　　Normally it is off-white or slightly yellow. Milky white or yellow-green color indicates inflammation of the reproductive tract or accessory sex glands ； Pink or red semen with red blood cells under the microscope is bloody semen, which is common in inflammation of the accessory sex glands and posterior urethra, and occasionally in tuberculosis or tumors.

　　3. pH:

　　The normal pH value of semen is 7.2-7.8. Less than 72 is seen when the ejaculatory duct is obstructed or contaminated by urine ； Greater than 7.8 is seen in seminal vesicle inflammation or old specimens.

　　4. Liquefaction time:

　　After normal semen is ejaculated, it becomes jelly-like under the action of seminal vesicle coagulation enzyme, and turns into liquid under the action of prostate liquefaction enzyme in 15-30 minutes. This is semen liquefaction. It is abnormal for the semen not to liquefy 30 minutes after ejaculation.

　　5. Viscosity:

　　Put the glass rod in contact with the liquefied semen and lift it gently to form semen strands, which are normally less than 2cm in length. 　

　　6. Sperm count:

　　Generally expressed as the number of sperm per milliliter of semen. Normal count ≥20×106/ml. Lower than this value means too few sperm, which is seen in spermatogenic dysfunction caused by various reasons. It can be caused by sperm entering Uterus The chances of ovulation and fallopian tubes are reduced, resulting in low fertility or infertility. If the sperm count is greater than 250×106/ml, it means there are too many sperms, which can also lead to infertility because of their affected motility.

　　7. Sperm morphology:

　　Sperm with normal shape should be ≥50%, otherwise it may cause infertility.