What is the method for sperm motility test?

The reason why many men suffer from infertility is that there is a problem with their sperm. There are many manifestations of sperm problems in men, such as asthenospermia, or a relatively small number of sperm, or a high sperm deformity rate, etc. In addition, it is also possible that the man's sperm motility is insufficient, which will also affect pregnancy, so you need to go to the hospital to check the motility of your sperm. The detailed examination method is as follows.

How to do sperm motility test?

So, how is sperm motility testing done, and what does it include? I will reveal it to you now.

It is required to abstain from sex for 3 to 7 days and then masturbate to collect semen, and then perform routine semen analysis after more than 3 consecutive times.

1. Motility: ≥50% of sperm move rapidly forward in a straight line.

2. Semen volume: A semen volume of ≥2ml is the normal semen standard. When it is greater than 7ml, it is too much, not only the sperm density is reduced, but also it is easy to flow out of the vagina, resulting in a decrease in the total number of sperm, which is often seen in seminal vesiculitis; less than 2ml is too little semen, but usually less than 1ml is too little. At this time, the contact area between semen and the female reproductive tract is small, or the viscosity is not conducive to the sperm entering the female cervix, resulting in infertility, which is often seen in severe paragonitis, low testosterone levels, ejaculatory duct obstruction, retrograde ejaculation, etc.

3. Sperm morphology: Sperm with normal morphology ≥ 50%, otherwise it may cause infertility.

4. Color: Normal color is off-white or slightly yellow. Milky white or yellow-green indicates inflammation of the reproductive tract or accessory glands; pink, red, or red blood cells under a microscope indicate bloody semen, which is often seen in inflammation of the accessory glands and posterior urethra, and occasionally in tuberculosis or tumors.

5. Acidity and alkalinity: How to judge the quality of sperm? First of all, we need to understand the pH value of sperm. The normal pH value of semen is 72-78. Less than 72 is seen in ejaculatory duct obstruction or urine contamination; greater than 78 is seen in seminal vesiculitis or old specimens.

6. Survival rate: usually refers to the examination within 1 hour after ejaculation, and the live sperm ≥ 50%. Common causes of reduced sperm motility and survival rate include paragonitis, varicocele, cilium syndrome caused by chronic respiratory tract infection, the presence of antisperm antibodies in semen or improper specimen storage.

7. Viscosity: When a glass rod is placed in contact with liquefied semen and gently lifted, a semen thread will be formed. Normally, its length is less than 2 cm.

8. Liquefaction time: After normal semen is ejaculated, it becomes jelly-like under the action of seminal vesicle coagulase, and becomes liquid under the action of prostate liquefaction enzyme after 15 to 30 minutes. This is semen liquefaction. If semen still does not liquefy 30 minutes after ejaculation, it is abnormal.