Is running the first sperm generally the healthiest?

We all think that the greatest victory in life is to defeat hundreds of millions of other small sperm. Actually, it is not. You are not necessarily the fastest, but you are the luckiest, and the fastest sperm is not necessarily the best.

Today, Bian Xiao tells you these things about sperm.

It is not easy for sperm to come all the way to fertilization success, and the obstacles encountered are also numerous.

first step

Sperm is encapsulated by semen and ejected. This wave of operation has nothing to do with your quality and running speed, because it depends entirely on luck, which is related to whether you can successfully enter the female body next.

The second obstacle

After successfully entering a woman's vagina, there is an immune cell inside, which will kill sperm. At this time, the sperm is completely submerged by it. As the saying goes, if you can't beat it, you will run, so there is still an advantage in running fast at this time! But you can't run blindly if you run fast. Most sperm can't find the right direction, and this is luck.

third stage

The sperm at this stage is one step closer to success, because it has passed through the cervix and reached the uterus, and at this time, half of the sperm will die. Then I have to enter the fallopian tube. At this time, choice is another problem. Half of the sperm will fail, and only lucky people can enter the fallopian tube with their eggs. If this is the right time to meet an egg, we can get one step closer to success.

Fourth layer

When an egg is rejected, it has a zona pellucida, and all sperm need to work together to defeat it. However, only one sperm can enter when crossing the zona pellucida. Once a sperm enters, the zona pellucida will close the entrance and prevent other sperm from entering again, so it is a joint effort, but only one sperm has eaten the fruit of victory. So you can become yourself by luck, which has nothing to do with sperm running fast and quality.