Do you know how fast sperm can run?

Do you know how fast sperm can run? Among the laboratory tests for male infertility, the first test is of course semen testing. Routine semen examination indicators include: semen volume, color magic wands , pH, agglutination, liquefaction, sperm count, sperm vitality, etc. Among them cock pump , sperm vitality is a very important indicator realistic dildo , but in the past, it was all based on subjective judgment by the inspector under the microscope based on the results of naked eye observation. It was not only influenced by the inspector's technical level, but also had considerable subjectivity. Some laboratories conduct grading records based on the quality of sperm movement according to the methods prescribed by the World Health Organization, while some only make a rough assessment and record them as good, medium and weak. As a result, semen testing has been at a low level. From the 1970s to 1980s, laser light scattering measurement technology and computer image processing automatic analysis systems were successively developed abroad, making the level of semen examination to a very accurate and complete level. According to tests, the peak distribution of sperm movement speed in normal people is 36 microns/second, and the average movement speed is 35 microns/second. While the peak distribution of sperm movement speed in infertile patients is 32 microns/second, and the average movement speed is 31 microns/second, there is a significant difference between the two groups. According to clinical statistics realistic dildo , about 20% of male infertile patients have azoospermia, about 30% have oligospermia, and about 40% of people have sperm movement speeds below 31 microns/second (half of them are below 28 microns/second). Since the semen examination of a considerable number of male infertile patients appears to be normal, but in fact the mobility of sperm is low, we initially believe that if a person's average sperm movement speed is lower than 28 microns/second, it should be regarded as asthenospermia (ie, poor sperm mobility, or poor sperm mobility). According to the results of animal experiments, it was found that there were significant species differences in the speed of sperm movement, and low fertility rates were also low. For example, the sperm movement speed of cattle can reach 50 - 70 microns per second, mice and rats can reach 45 - 55 microns per second, while the sperm movement speed of giant pandas is only about 20 microns per second. Giant pandas 'low reproductive capacity is a major problem in protecting this rare animal. Because the number of observed cases is still too small, it is not certain that the low fertility rate of giant pandas is due to the low speed of sperm movement. Clinical test results also showed that the speed of sperm movement was not related to the level of sperm count or whether semen was liquefied.
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