Sperm analysis

1, semen routine inspection sampling should have the conditions:

After frequent ejaculation for a period of time, the subjects are forbidden to have sex for 5-7 days (the interval between the last ejaculation and the collection of samples shall not be less than 100 hour); Prepare a clean and dry container with a big mouth and a lid, masturbate to get semen, pour it all into the container at one time, cover it, and record the time of the specimen in vitro; Keep warm close to your body and send it to the laboratory within 30 minutes, giving inspectors time to take out samples.

2, semen routine examination:

Total semen volume (ml), sperm activity, sperm density (individual /ml), semen liquefaction time (time from specimen taking to semen liquefaction), sperm cells (individual/high vision), etc. Sperm cells can only be distinguished by staining: inactive sperm, dead sperm, immature sperm and so on. If no sperm can be found, it must be tested after centrifugation, and still no sperm can be found; Before reporting azoospermia. No sperm was found after three sampling tests, and azoospermia was confirmed.

3, semen inspection should standardize semen.

Accidentally took semen, went to the hospital after 7 days of abstinence, masturbated and took it, and then sent it for inspection in time. The purpose of semen examination is to ensure the quantity, purity and vitality of sperm.

4. Analysis of semen test results

Semen can reflect the basic situation of male reproductive function, and semen analysis is a very important and indispensable item in infertility examination. Under normal circumstances, more than 70% of normal sperm should survive within 1 hour after the semen is excreted. If the dead sperm exceeds 40%, it will affect pregnancy. Sperm survival time should be kept above 6 hours and 20%. If there is no live sperm within 6 hours, it may lead to infertility. Sperm activity is directly related to fructose contained in seminal vesicle. Fructose is reduced, nutrition is deficient, and sperm mortality is higher. The number of sperm must be more than 20 million to get pregnant normally.