Artificial insemination cannot be separated from the semen provided by the sperm donor. The quality of the sperm is the most concerned issue for those who receive artificial insemination. Why does semen used for artificial insemination need to be frozen? In this way, will the pregnancy rate be the same as that of fresh semen?
Semen not only contains sperm, but it is also the carrier of many diseases. Many sexually transmitted disease pathogens, such as gonococci that cause gonorrhea and human immunodeficiency virus that causes AIDS, can be transmitted through semen. In the early 1980s, people discovered that using fresh semen for artificial insemination could easily lead to the spread of gonorrhea, so someone proposed using frozen semen for artificial insemination. The research results further reveal that after a man is infected with HIV, it takes a long time (up to 3 years) to be detected through blood tests, and before that, the virus has been excreted from the semen. In addition, hepatitis B virus may also be excreted from semen, and laboratory tests of liver function will not show abnormalities until one month to six months later. In addition, freezing also facilitates the storage and use of semen. Because after the semen is discharged, the sperm will quickly lose its vitality at room temperature without freezing.
Will freezing the semen reduce the pregnancy rate? Research shows that as long as the number of frozen sperm used for each insemination is increased to 30 million to 50 million, the same pregnancy rate as fresh semen can be obtained.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao